Melatonin - Optimum Nutrition - 3 MG – 100 Tablets

98% of 100
In stock

Benefits and Results:

  • Supports Sleep†
  • Promotes Relaxation and Calmness†
  • Easy to Swallow Pills†
Frequently Bought Together
  • Total price

Melatonin By Optimum Nutrition - 3 mg - 100 Tabs - Sleep Aid

What is it and How Does It Work?

Optimum Melatonin is a hormone produced by your body and secreted at night.† Melatonin controls your sleep and wake cycles.† Each serving of ON's Melatonin supplement provides 3 mg of pure melatonin along with 72 mg of calcium and 55 mg of phosphorus.†


  • Melatonin (3mg)

Who should take it?

If you are suffering from Jet Lag after a long trip or suffer from sleep disorders such as insomnia then Melatonin may be a good choice for you.† 

Featured Customer Reviews:

Review by Júlio César

Very efficient communication, fast shipping. Highly recommended.

Review by leonardo

Great product and great price


How many servings are there?

  • There is 100 servings in each bottle.

When is the best time to take it?

  • It is recommended to take it 30-60 minute before bed.

Can I take multiple servings at once?

  • It is recommended just to take one serving (one tablet) at a time.

Does it have valerian?

  • No, this product only contains Melatonin. We do sell Valerian separately if you are interested. Check out: Valerian RX.

Can I consume alcohol while taking melatonin?

  • No, it is not recommended to take with alcohol.

Is it extended or quick release melatonin?

  • No, this is a standard version of Melatonin.

Comparable Products:


We do not recommend stacking melatonin with another sleep aid. However, if you are looking to take other products throughout the day it should be fine. Just make sure to try each product individually first.

How Do I Take Optimum Melatonin?

Dosage and Directions:

Take 1 tablet 30-60 minutes before bedtime.

What's In Optimum Nutrition Melatonin?

Supplement Facts / Label:

Optimum Melatonin Supplement Facts

Warnings and Side Effects:

Consult your physician before using this product if you are taking any medications or are under a physician’s care for a medical condition. Not for use by those under the age of 18, or women that are pregnant, or nursing.

May cause excess drowsiness. Do not exceed recommended dosage or take this product less than 5 hours before driving a motor vehicle or operating machinery.


PLEASE NOTE: Product images represent the product offered but may not contain exact attributes. Please read the product description for the specific attributes of this product.

†PLEASE NOTE: The intention of the information above is for reference only. It is our goal to maintain and display accurate information. Yet, we can't guarantee it represents the latest formulation of the product. If you have any concerns, please visit the manufacturer's website. The information above is not a representation of our views at Same Day Supplements. These are the views and information provided by the product's manufacturer. The Food and Drug Administration has not evaluated these statements. The intention of this product is not to diagnose, treat, cure or prevent any disease or illness.

*Prices are subject to change at any time and items may limit to stock on hand.


In-stock orders placed before 3pm EST ship out the same day.

We offer many shipping options to countries like:
  • Brazil
  • United Kingdom
  • Canada
  • Germany
  • Australia
  • Japan
  • India
  • France
  • Israel
  • Worldwide
More Information
SKU ON-0003
Weight 0.2000
UPC 748927020076
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Customer Reviews
  1. Excelente
    Overall Product Review
    Funciona muito bem para noites de sono. (Works great for nights of sleep.)

    Review by PABLO

    Posted on

  2. excelente produto!
    Overall Product Review
    sentir uma melhora no sono . (feel an improvement in sleep.)

    Review by Jose

    Posted on

  3. Good!
    Overall Product Review
    C x b!

    Review by Gilmar

    Posted on

  4. otimo produto
    Overall Product Review
    preço e resultado (price and result)

    Review by Iasmine

    Posted on

  5. Ótimo (Great)
    Overall Product Review
    Esse produto mudou a minha vida! Finalmente passei a dormir cedo e com uma qualidade muito melhor de sono!
    This product has changed my life! I have finally began to sleep early and with a much better sleep quality.

    Review by Carlos

    Posted on

  6. Ótimo
    Overall Product Review
    Produto muito bom , ótima opção para quem precisa dormir com mais qualidade. (Very good product, great option for those who need to sleep with more quality.)

    Review by raymundo

    Posted on

  7. Great!
    Overall Product Review
    Esse produto mudou minha vida!

    This product has changed my life!

    Review by Carlos Eduardo

    Posted on

  8. Great
    Overall Product Review
    Very efficient communication, fast shipping. Highly recommended.

    Review by Júlio César

    Posted on

  9. Avaliação
    Overall Product Review
    Gosto muito do produto e a entrega é otima (I really like the product and the delivery is great)

    Review by Rodrigo

    Posted on

  10. Excelent product
    Overall Product Review
    this product helps me sleep better

    Review by Anderson

    Posted on

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