11 best melatonins

Product description

What Is Melatonin?

Melatonin is a hormone that is naturally produced in the body by the pineal gland of the brain. This hormone helps to regulate your body’s natural clock, and it is involved in the sleep/wake cycle.* Unfortunately, our busy lives can interfere with melatonin production, whether it is from working late, sleeping with lights on, or experiencing jet lag. Many of us wish to sleep like a baby, but don't want a habit forming sleeping pill. Carlyle Melatonin is fast acting and non-habit forming. It is about time that you release your occasional frustrations about sleep, and try something that promotes better rest.* It is important to wake up feeling fresh and rejuvenated in the morning to get a good start to your day.

Get Better Rest with Melatonin

Most adults need seven to nine hours of sleep per night, but most people rarely get that amount to support their overall health and well-being. Melatonin supplements and vitamins in your nighttime routine promotes relaxation, better rest, and you will wake up feeling refreshed!* Melatonin is also a non-habit forming supplement. This product is for adults and not a sleep aid for cats or for use in dog treats, nor is it a sleep aid for toddlers / infants.

High Quality Plus Natural Rest

Carlyle is your source for high quality supplements. Our fast dissolve tablet, high dose Melatonin is Non-GMO, packaged and lab tested for quality standards in a GMP certified facility in the USA. In addition, this nutrient is free of common allergens, including gluten, lactose, milk, yeast, artificial flavor, and preservatives.

• Fall asleep faster with our fast dissolve melatonin, an over the counter sleep aid supplement*
• Melatonin comes in many forms, including gummies, chocolates, capsules, chewables, drops, and liquid
• Carlyle Melatonin is a Non-GMO Gluten Free supplement that supports better rest and more relaxation*
• Our fast dissolve tablets contain 12 mg of melatonin;a great alternative to other sleep supplements*
• Carlyle max potency Melatonin helps relieve occasional sleeplessness from jet lag*

User questions & answers

Question:	Are these scored, so that they can be cut in half-easily
Answer:	no. it is a rechargeable lighter. I don't know how old you are but it is just like the old lighters that used to be in cars. the kind you had to hold your cig right down onto the hot coils of the lighter. hope this helps.
Question:	Says Fast dissolved? Do you dissolve in mouth like on or under tongue or after you swollow them
Answer:	it has a little lever that you slide forward to turn on and off. it works just like the old fashion car lighters ( provided you are old enough to remember)- you put your cigarette right up against the hot coils and suck. LOL
Question:	where is this product made
Answer:	Actually this is a peace of trash
Question:	Are these natural or synthetic
Answer:	To get the chick you will need some brain. Amazon don't sell the brain.

Product description

Natrol® Melatonin, the #1 brand in America, can help establish normal sleep patterns to give you a more restful, relaxing sleep. It helps you fall asleep faster and stay asleep longer so you can wake up rested.† †These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

• Get better sleep – melatonin is naturally produced by our bodies to manage sleep cycles, but its balance can be easily disrupted. Natrol Melatonin helps you fall asleep faster, stay asleep longer, and wake up feeling refreshed, plus, it’s 100% Vegetarian
• 100% drug free – Natrol Melatonin is a nighttime sleep aid that assists with occasional sleeplessness. This drug-free sleep aid means no morning grogginess. It is non-habit forming, so you can use it with confidence whenever you need to adjust your internal clock
• Better overall health – Natrol Melatonin helps to establish normal sleep patterns and give you a more restful and relaxing sleep and in turn, better overall health. Research shows that better sleep can lead to improved performance and focus
• #1 melatonin brand in America – Natrol is the #1 melatonin brand in America and one of the nation’s leading manufacturers of vitamins and supplements
• Fast Dissolve tablets – natrol’s unique fast dissolve Strawberry formula enables faster absorption that can be taken anytime, anywhere. No water needed

User questions & answers

Question:	What is the expiration date of these?, as of today
Answer:	circular
Question:	Would one dose break a fast
Answer:	Perhaps whatever is causing you to lose sleep is what's manifesting itself as bad dreams, nightmares, and such. I recommend you not watch any computer screens before going to bed and turning off all Wi-Fi. Schedule a 30-minute wind-down time right before bed and listen to some of that new age relaxation music. You can download a 3-hour piece over YouTube. Works well for me. During the half-hour, also use some mild self-hypnosis therapy. You can eventually use it to control my dreams. I don't think reducing it will help.
Question:	Is it kosher
Answer:	I also, does anyone know what this powder?
Question:	where is this made
Answer:	Much smaller than a dime: about 1/4" diameter by 1/16" thick. Looks about the size of a baby aspirin to me.

Product features

1. Create a sleep routine

Establishing a consistent sleep-wake schedule helps regulate your circadian rhythms and increases the quality of sleep.

2. Avoid bright screens 60 minutes before bedtime

Exposure to bright LED lights such as smartphones, laptops and TV screens before bed can interfere with your body’s natural release of melatonin.

3. Consider taking a melatonin supplement

Melatonin is a drug-free sleep aid that helps regulate healthy sleep patterns for a more restful night’s sleep.

4. Create a calm, dark bedroom oasis

A noise-free and dark bedroom environment can help you sleep better throughout the night. Mask noise pollution with calming sounds or ear plugs, and block out disruptive light with darkening curtains or a sleep mask.

Product description

Vitafusion Extra Strength Melatonin fuses nutritious and delicious. Melatonin plays a major role in regulating the sleep-wake cyle. Supplementation of melatonin is used to help regulate the sleep-wake cycle and can help with jet lag[1]. Two Extra Strength Melatonin gummies provide 5 mg of Melatonin per serving. Vitamin Better!

• Helps support sleep
• Helps with jet lag
• Contains NO high-fructose corn syrup, NO gluten, NO dairy and NO synthetic (FD&C) dyes
• Natural blackberry flavor
• Recipient of the 2018 ChefsBest Excellence Award. The ChefsBest Excellence Award is awarded to brands that surpass quality standards established by independent professional chefs.

Product description

Natrol Melatonin can help establish normal sleep patterns to give you a more restful, relaxing sleep. It helps you fall asleep faster and stay asleep longer so you can wake up rested. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

• Get better sleep – Melatonin is naturally produced by our bodies to manage sleep cycles, but its balance can be easily disrupted. Natrol Melatonin helps you fall asleep faster, stay asleep longer, and wake up feeling refreshed, plus, it’s 100% vegetarian
• 100% drug free – Natrol Melatonin is a nighttime sleep aid that assists with occasional sleeplessness. This drug-free sleep aid means no morning grogginess. It is non-habit forming, so you can use it with confidence whenever you need to adjust your internal clock
• Better overall health – Natrol Melatonin helps to establish normal sleep patterns and give you a more restful and relaxing sleep and in turn, better overall health. Research shows that better sleep can lead to improved performance and focus.
• #1 Melatonin brand in America – Natrol is the #1 Melatonin brand in America and one of the nation’s leading manufacturers of vitamins and supplements.
• Liquid form: Great tasting raspberry & vanilla flavor. It is great tasting and an ideal alternative to taking pills before bed

User questions & answers

Question:	Que edades se puede utilizar
Answer:	I use it twice before my son goes to bed one before he puts on his pajamas and right before he lays down. Sometimes it lasts all night long but if he wakes up in the middle of the night I apply it again.
Question:	Are the markings on the dropper half a mL and a full mL
Answer:	I rubbed a little on each of my child's wrist and behind their neck.
Question:	If I take this and need to wake up in 8 hours will it be hard
Answer:	feet , chest, spine.
Question:	Where is this product manufactured
Answer:	No

Product features

1 Drug-Free Sleep Aid Brand^

^Nielsen panel data 1/23/2021

What is Melatonin?

Melatonin is naturally produced in the body to guide our “sleep-wake” cycle. When the sun sets, darkness signals the brain to produce melatonin, telling our body it’s time to sleep. Melatonin levels stay elevated to help keep us asleep. When the sun comes up, the light signals the brain to stop making melatonin.

Changes in routine, season time changes, and screen-time before bed are some of the many things that can interrupt melatonin production and throw us off cycle. Melatonin supplements can help.†

1. Create a sleep routine

A consistent sleep-wake schedule helps increase the quality of sleep.

2. Avoid bright screens 60 minutes before bedtime

Exposure to bright lights can interfere with your body's natural release of melatonin.

3. Consider taking a melatonin supplement

Melatonin helps regulate healthy sleep patterns for a more restful night's sleep.†

4. Create a calm, dark bedroom oasis

A noise-free and dark bedroom environment can help you sleep better throughout the night.

How Much Melatonin Should I Take?

• It is recommended that you start with a small dose taken 20-30 minutes before bed to see how your body reacts.
• You can gradually increase your dosage until you find the right amount, but do not exceed 10mg, the maximum recommended dosage.

When to consider taking melatonin

• You have occasional sleeplessness.†
• You have a shift in your sleep schedule of 1 hour or more.

When to increase your dose

• You're still having trouble falling asleep or staying asleep even after taking melatonin.†

When to decrease your dose

• You’re experiencing grogginess the next morning.
• You’re experiencing vivid dreams.
• You’re experiencing headaches.

Product description

Natrol Melatonin can help establish normal sleep patterns to give you a more restful, relaxing sleep. It helps you fall asleep faster and stay asleep longer so you can wake up rested. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

• GET BETTER SLEEP –  Melatonin is naturally produced by our bodies to manage sleep cycles, but its balance can be easily disrupted. Natrol Melatonin Time Release helps you fall asleep faster, stay asleep longer, and wake up feeling refreshed, plus, it’s 100% vegetarian.
• 100% DRUG FREE – Natrol Melatonin Time Release is a nighttime sleep aid that assists with occasional sleeplessness. This drug-free sleep aid means no morning grogginess. It is non-habit forming, so you can use it with confidence whenever you need to adjust your internal clock.
• BETTER OVERALL HEALTH – Natrol Melatonin helps to establish normal sleep patterns and give you a more restful and relaxing sleep and in turn, better overall health. Research shows that better sleep can lead to improved performance and focus.
• #1 MELATONIN BRAND IN AMERICA – Natrol is the #1 melatonin brand in America and one of the nation’s leading manufacturers of vitamins and supplements.
• TIME REALEASE FORMULA – Natrol Melatonin Time Release tablets provide an initial dosage of melatonin to help you fall asleep fast, then slowly releases additional melatonin throughout the night to help you stay asleep so you can wake up refreshed.
• During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.

User questions & answers

Question:	How long before i can expect results? Meds sometimes take weeks
Answer:	1 milligram each tablet.
Question:	What does B6 and Calcium do in combination with melatonin
Answer:	In our case, yes! They helped get bedtime routine in check, helped my kid stay asleep, and helped with mornings (instead of fighting getting up and out of bed, it appeared sleep was so restful, waking up wasn’t hard). Melatonin has helped me as an adult and my elementary schooler. We have been pleased with this product.
Question:	I've read that natural melatonin is normally harvested from animal glands. Is your product made with synthetic melatonin or the animal gland kind
Answer:	Melatonin is naturally produced by the body to help you sleep. Sometimes kids don't produce enough or have other factors involved so these help a lot. My son has behavioral insomnia and these gummies have him in bed by 11 pm vs 2-4 am. I definitely recommend them.
Question:	Are these made in the USA
Answer:	While I'm not a doctor and not an expert, I study health a lot. The stakes are higher when it comes to a child's health. Steps I'd follow to improve sleep in order of health/safety: 1. Research and exhaust ALL natural ways to improve sleep. Not going to get into that because it's a simple google search away. 2. Supplement with magnesium glycinate, as it's a mineral naturally found in food. The Glycinate form is shown to be better for sleep than other forms. 3. Consider l-theanine, chamomile, lavender, valerian root and other natural sleep herbs/plants. 4. If none of that work, then I'd graduate to melatonin. While it's natural, the difference is it's a HORMONE too. The long-term studies are just not there, especially for a child taking it. Some studies have shown taking 3mg is 20x more than what the average body produces. I've seen suggestions that if an adult sleeps poorly most nights, start with a low dose, like 0.3mg every night (which makes me wonder if 3-5mg is way too much for a child). Test occasionally if no longer needed. If the adult sleeps poorly only once in awhile or is planning for occassional jet lag, then the adult can take higher doses to use as needed. How high of a dose, I don't know but if taking occasionally, I'd guess only 0.5mg-4mg. At the end of the day, the parent/child must do what's best for their well-being. Slowly testing what works and starting with a natural approach is always best. Doctors don't always know what's best to follow them blindly, but it helps to get their advice while researching on your own.

Product features

1. Create a sleep routine

Establishing a consistent sleep-wake schedule helps regulate your circadian rhythms and increases the quality of sleep.

2. Avoid bright screens 60 minutes before bedtime

Exposure to bright LED lights such as smartphones, laptops and TV screens before bed can interfere with your body’s natural release of melatonin.

3. Consider taking a melatonin supplement

Melatonin is a drug-free sleep aid that helps regulate healthy sleep patterns for a more restful night’s sleep.

4. Create a calm, dark bedroom oasis

A noise-free and dark bedroom environment can help you sleep better throughout the night. Mask noise pollution with calming sounds or ear plugs, and block out disruptive light with darkening curtains or a sleep mask.

Product description

Nature's Bounty Dual Spectrum Melatonin tablet has two layers: a quick release and extended release. Whether a busy schedule or exercise routines are preventing you from relaxing and getting a restful night sleep, melatonin may be the drug free solution for occasional sleeplessness. ISR technology ensures the quick release portion delivers a quick and effective release of ingredients while the extended release portion releases over the course of several hours.

• Melatonin is a hormone naturally found in the body
• Combines a quick release and a time release layer
• Supports rest and relaxation to aid with occasional sleeplessness
• Nutritionally supports sound sleep
• These statements have not been evaluated by the Food and Drug Administration
• Packaging may vary due to new packaging updates, same great product
• During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.

User questions & answers

Question:	How big are these tabs? I had gastric bypass and can't take meds larger than a hole punch
Answer:	I’ve never tried Kavinace Ultra PM. I’m very happy with Insomnitol. It works great and no morning grogginess. It works best on an empty stomach.
Question:	I have problems swallowing some tablets. How big are these
Answer:	Haven’t tried the chewables, but the capsules worked good for me...until they didn’t, then I had to find something else. Good luck!
Question:	How long does the sustained release last? Thank you
Answer:	Melatonin -3mg. B6 -10mg. Valerian-400mg. Passionflower , Lemonbalm, Camomile- 200mg ea. PharmaGaba, LTheanine, 5HTP-100mg ea.
Question:	Does it release 5 mg each layer? or 2.5 per layer
Answer:	No. FM2 has a larger size and this will not fit around it.

Product features

Nature’s Bounty: Nearly 50 Years of Trusted Quality

At Nature’s Bounty, we are committed to your health. For nearly 50 years we have been making trusted products, backed by science, and made with only the purest ingredients…assured. So you can get the most out of life every day.

Our dedication to quality, consistency, and scientific research has resulted in vitamins and supplements of unrivaled excellence.

Driving Innovation through Scientific Expertise

Our Scientific Advisory Council is made up of prominent scientists and researchers external to The Nature's Bounty Co., who play a key role in the Company’s product innovation and scientific advancement. It is comprised of some of the most respected medical and nutrition experts in the field.

Quality You Can Count On

Every Nature’s Bounty product is subjected to numerous quality tests and assays throughout the manufacturing process to verify purity and full potency.

Don’t Just Take Our Word For It

We’re proud that our facilities have been successfully audited by the United States Pharmacopeia and STR (Specialized Technology Resources), a leading independent dietary supplement quality evaluation firm.

Product description

Natrol Melatonin can help establish normal sleep patterns to give you a more restful, relaxing sleep. It helps you fall asleep faster and stay asleep longer so you can wake up rested. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

• Allergen information: shellfish_free

User questions & answers

Question:	does this contain gluten
Answer:	The kibble is smaller and there is more protein in the small breed formula. Regular has 25% and small breed has 29%
Question:	What is 50mg of 5-HTP
Answer:	The bag I purchased and received was definitely small breed. The kibble pieces were the tiny little triangular shapes.
Question:	Why does this include Vitamin B
Answer:	Ingredients:Salmon, Salmon Meal, Peas, Potatoes, Canola Oil (preserved with Mixed Tocopherols), Dried Ground Potatoes, Tomato Pomace, Ground Flaxseed, Natural Fish Flavor, Chicory Root Extract, Vitamins Vitamin E Supplement, Beta-Carotene, Niacin, d-Calcium Pantothenate, Vitamin A Supplement, Riboflavin, Vitamin D3 Supplement, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Thiamine Mononitrate, Ascorbic Acid (Vitamin C), Biotin, Folic Acid, Minerals Zinc Proteinate, Zinc Sulfate, Iron Proteinate, Ferrous Sulfate, Copper Sulfate, Copper Proteinate, Manganese Proteinate, Manganese Sulfate, Sodium Selenite, Calcium Iodate, Choline Chloride, Mixed Tocopherols added to preserve freshness, Taurine, Glucosamine Hydrochloride, Chondroitin Sulfate, Dried Lactobacillus plantarum Fermentation Product, Dried Enterococcus faecium Fermentation Product, Dried Lactobacillus casei Fermentation Product, Dried Lactobacillus acidophilus Fermentation Product, Rosemary Extract, Green Tea Extract.
Question:	Can you chew these
Answer:	I have called wellness also because it seems to always be out of stock and my pup loves it. They said they were having production and packaging issues. However this at least the 3rd time it has happened. I can't take the chance anymore and moved my pup to the Complete Wellness for Healthy Weight Small Breed and she loves it. You also get more for your money. If it wasn't the production issue I would continue with the product as I think it is great.

Product features

1 Drug-Free Sleep Aid Brand^

^Nielsen panel data 1/23/2021

What is Melatonin?

Melatonin is naturally produced in the body to guide our “sleep-wake” cycle. When the sun sets, darkness signals the brain to produce melatonin, telling our body it’s time to sleep. Melatonin levels stay elevated to help keep us asleep. When the sun comes up, the light signals the brain to stop making melatonin.

Changes in routine, season time changes, and screen-time before bed are some of the many things that can interrupt melatonin production and throw us off cycle. Melatonin supplements can help.†

1. Create a sleep routine

A consistent sleep-wake schedule helps increase the quality of sleep.

2. Avoid bright screens 60 minutes before bedtime

Exposure to bright lights can interfere with your body's natural release of melatonin.

3. Consider taking a melatonin supplement

Melatonin helps regulate healthy sleep patterns for a more restful night's sleep.†

4. Create a calm, dark bedroom oasis

A noise-free and dark bedroom environment can help you sleep better throughout the night.

How Much Melatonin Should I Take?

• It is recommended that you start with a small dose taken 20-30 minutes before bed to see how your body reacts.
• You can gradually increase your dosage until you find the right amount, but do not exceed 10mg, the maximum recommended dosage.

When to consider taking melatonin

• You have occasional sleeplessness.†
• You have a shift in your sleep schedule of 1 hour or more.

When to increase your dose

• You're still having trouble falling asleep or staying asleep even after taking melatonin.†

When to decrease your dose

• You’re experiencing grogginess the next morning.
• You’re experiencing vivid dreams.
• You’re experiencing headaches.

Product description

Getting proper rest helps you function during the day. Melatonin is a hormone produced in the pineal gland, which helps to regulate sleep and wake cycles. Taking one Nature Made Melatonin 3mg tablet one hour before bedtime may help to support sleep.†

Brand Story

By Nature Made

• For a limited time, you may receive either bottle while we update our packaging. Both have the same great product inside. Based on new FDA regulations, you may also notice a change in the unit of measure and/or daily value for certain products.
• Contains a 240-day supply of Nature Made Melatonin 3mg Tablets, 240 tablets per bottle.
• 100% drug free. Natural acting sleep aid.
• Adults, take 1 tablet one hour before bedtime with water.
• These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

User questions & answers

Question:	What shape are the tablets? Are they oval or circular
Answer:	Yes! According to the Releev package: "May be used on sores inside the mouth by following the directions below." (The same directions for using Releev on the lips.) Also, on the Releev website, it says: "It can also be used inside the lips directly on the sores." I have experienced Releev's effectiveness on the inside of my mouth myself! Great product!
Question:	The 3mg dose gives great sleep but bad dreams! If I cut it in half (take 1.5mg instead), would it still help me sleep while stopping the wild dreams
Answer:	Just 1drop on your finger then apply. Don't squeeze bottle hard, it is very thin but it works GREAT! It is the only thing I use
Question:	I opened the bottle to find a thick layer of powder inside, is this normal? All of the tablets are still intact
Answer:	I have not used docoshield, but this does work very well. When I feel a cold sore coming on I put on and it stops or minimizes the cold sore.
Question:	What size are the actual pills? Dime size, quarter size
Answer:	Yes. Honestly I have been using releev for about 12 years and as soon as I feel a cold sore coming on I put a few drops on and I do not get a cold sore. I continue to use it for the next 24 hours, applying about 4x daily. You will not be disappointed.

Product features

Nature Made Melatonin 3 mg Tablets for Supporting Restful Sleep†

Getting proper rest helps you function during the day. Melatonin is a hormone produced in the pineal gland, which helps to regulate sleep and wake cycles. Supplemental melatonin taken one hour before bedtime may help to support sleep.†

Product description

Getting proper rest helps you function during the day. Melatonin is a hormone produced in the pineal gland, which helps to regulate sleep and wake cycles. Taking one Nature Made Melatonin 5mg tablet one hour before bedtime may help to support sleep.†

Brand Story

By Nature Made

• For a limited time, you may receive either bottle while we update our packaging. Both have the same great product inside. Based on new FDA regulations, you may also notice a change in the unit of measure and/or daily value for certain products.
• Contains a 90-day supply of Nature Made Melatonin 5mg Tablets, 90 tablets per bottle.
• 100% drug free. Natural acting sleep aid.
• Adults, take 1 tablet one hour before bedtime with water. Do not exceed 2 tablets daily.
• These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

User questions & answers

Question:	Does this have any B6 in the ingredients
Answer:	The Melatonin + 5-HTP product does not contain any gluten. However, the product is not made in a gluten free facility. Best of Health, Natrol Consumer Relations
Question:	Can this pill be cut in half
Answer:	5-HTP is a natural element that can promote RELAXATION.
Question:	Doesmthis product contain zilatolz
Answer:	B-6 helps your body produce melatonin.
Question:	Is this exact product USP verified? I don't see it on the photos of the label
Answer:	The Melatonin+5-HTP is a time released tablet in two layers and should not be chewed. If you chew it or cut it, the time release action will be ruined. Best of Health Sheryl Stanley Natrol Consumer Relations

Product features

Nature Made Melatonin 5 mg Tablets for Supporting Restful Sleep†

Getting proper rest helps you function during the day. Melatonin is a hormone produced in the pineal gland, which helps to regulate sleep and wake cycles. Supplemental melatonin taken one hour before bedtime may help to support sleep.†

Product description

Melatonin, a hormone produced in the pineal gland in the brain that regulates the body's sleep cycle, is said to decrease with age, and a supplement may help support a good night's rest needed due to occasional sleeplessness or even jet lag.

• Quick dissolve tablets, cherry flavor
• To support a good night's rest
• No added sugar, yeast, preservatives, artificial flavors or colors
• Proudly manufactured in the USA
• Allergen information: gluten_free
• During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.

User questions & answers

Question:	Made in China
Answer:	There are no additional active ingredients in this supplement besides Melatonin.
Question:	What is the carb content per serving
Answer:	I'm sure it could be but if it were me I would just get the 5mg. It does not have a cut line. They have the 5 mg in a 3bottle per package deal also. These are great for sleeping for sure.
Question:	what is the expiration date
Answer:	Zilatolz is not listed as either a main ingredient or under "other" ingredients.
Question:	Do they say to put these under the tongue and let them dissolve? Or do you just eat them? I heard it's better under tongue
Answer:	There is nothing on the label, but the USP website does say that NatureMade 3 and 5mg melatonin is USP certified. http://www.usp.org/usp-verification-services/usp-verified-dietary-supplements/verified-supplements/nature-made