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NeuroScience   Kavinace OS - 60 Capsules

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  • 2.9
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38 Reviews

"Very Positive experience when comparing this product with the original"  Read all reviews

Item Number: NS1099
Serving Size: 2 Capsules Servings per Container: 30
Price per Serving:  $1.65 Price per Unit*: $0.83 per Capsule
* Price Per Unit may reflect product's price per capsule, tablet, ounce, fluid ounce, etc.
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The newest formulation from the quick sleep support brand you trust.

Kavinace® OS is a comprehensive blend of ingredients shown to improve the onset‚ duration‚ and efficiency of sleep while offering the convenience of a consistent experience for those loyal to Kavinace with capsules identical in size and type.

Preliminary study data showed participants taking one serving of Kavinace OS at bedtime significantly shortened the time it took to fall asleep and also significantly increased the time spent asleep while in bed [1]. The vast majority of participants reported improved sleep quality with the Kavinace OS blend and were very satisfied with how quickly they fell asleep [1].

NeuroScience is a two decade old‚ healthcare provider trusted brand whose supplements undergo product specific‚ independent testing to guarantee label amounts of each ingredients and the absence of heavy metals‚ pesticides‚ and microbes.

[1] Data on file. 2019. NeuroScience‚ Osceola‚ WI 54020.



These statements have not been evaluated by the Food and Drug Administration (FDA). These products are not meant to diagnose‚ treat or cure any disease or medical condition. Please consult your doctor before starting any exercise or nutritional supplement program or before using these or any product during pregnancy or if you have a serious medical condition.

  • MFG # 20053
  • UPC # 659468101776
Official Website: https://www.neuroscienceinc.com

Serving Size: 2 Capsules
Servings Per Container: 30

Amount Per Serving / % Daily Value

Magnesium 25 mg / 6%
(as magnesium bisglycinate chelate)
Zinc (as zinc bisglycinate chelate) 15 mg / 100%
Selenium (as selenomethionine) 200 mcg / 286%
Melatonin 5 mg / †
Proprietary Blend 214 mg / †
L-theanine‚ Resveratrol (as trans-resveratrol)‚ and Astaxanthin.

† Daily Value not established.

Other Ingredients: Vegetable capsule (Hypromellose‚ water)‚ Organic rice concentrate‚ and Microcrystalline cellulose.


Take 2 capsules at bedtime or as directed by your healthcare provider. Do not exceed suggested use.


If you are pregnant or nursing‚ consult your healthcare provider before use.

This product has a tamper evident seal under the cap. Do not use if seal is broken or missing.

Keep out of reach of children.
Store at room temperature‚ in a dry place.


  • GMP (Good Manufacturing Practices) Certification

Ratings and Reviews

Write a Review
  • 2.9
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3 38
  • 38 Reviews
    • Verified Buyer

      Kavinance OS

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      from Greer SC on 7/02/2021
      Helps me sleep. However, it’s too expensive!

      Pros

      Helps me sleep

      Cons

      It’s too expensive without points
      review-checkI would recommend this item to a friend.
    • Kept me awake

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      from MO on 3/30/2021
      I received a package of this supplement with a recent Pure Formula order. Both my husband and I decided to give it a try last night. We each only took 1 capsule, instead of the 2 capsule dosage indicated on the package. This sleep aid actually gave me insomnia. I was up several times throughout the night for long durations, from 3am - 5am. In desperation I took my normal melatonin only supplement just to get back to sleep and through the night. It wasn't just a bad reaction for me, my husband (who normally sleeps pretty good) was also up several times throughout the night and had a miserable sleep. There is something wrong with this product and would not recommend it. I will be tossing the rest of them.

      Pros

      Nothing

      Cons

      Did opposite of what it was supposed to do, caused insomnia versus a restful sleep
      1 of 2 people found the following review helpful.
    • Verified Buyer

      for sleep

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      from Bradenton Fl on 3/28/2021
      I love this product , it helps me sleep without a hangover

      Pros

      helps with sleep

      Cons

      no cons
      review-checkI would recommend this item to a friend.
    • Good, but could be better...

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      from STUDIO CITY CA on 3/16/2021
      I have just begun using Kavinace OS, and there's good to report....and bad. First the bad: I find that melatonin in capsule form is less effective than the sublingual form, which enters the bloodstream more quickly. This distinction is important when you want to get to sleep quickly. The good: the Kavinace OS does include some helpful ingredients not often found in a melatonin supplement. If, for example, you have hypothyroidism, you'll welcome the inclusion of zinc and selenium, which have been shown to support thyroid health. But, it's hard to recommend a melatonin supplement that doesn't quickly promote sleep.
      1 of 1 people found the following review helpful.
    • Verified Buyer

      Doesn't work anything like it used too

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      from Fort Worth TX on 2/20/2021
      I used the old Kavinace formula before they changed it & it worked like a charm. Tried the new revised Kavinace & it did not work at all.

      Pros

      Can't say anything good about it

      Cons

      Spent so much money on a product that no longer works
    • Verified Buyer

      Help me sleep

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      from EL CAJON CA on 6/27/2020
      I take 2 teaspoons a night and help my sleep. I like the flavor

      Pros

      I can adjust the amount versus capsules that aren't adjustable.

      Cons

      When first using it, the liquid is a little oily.
      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Still works great for sleep for me

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      from Arizona on 5/05/2020
      I depend on this for a full night's sleep... and the new formula seems to be working great for me. I miss the old formula, but I'm grateful that the new formula works in a pinch.

      Pros

      keeps me asleep, potent

      Cons

      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Good

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      from Aurora IL on 1/15/2020
      It works well for sleep

      Pros

      It works almost as well as the original

      Cons

      I miss the original formula
      review-checkI would recommend this item to a friend.
      1 of 1 people found the following review helpful.
    • Verified Buyer

      New Formula - Bring back old formula

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      from Farmington, CT on 1/15/2020
      I have been a long time user of Kavinace. This new formula is not the same as the old formula and no longer works for me. The old version of Kavinace would allow me to gently fall asleep. This new formula does not help me fall asleep or stay asleep. I will discontinue my use of this product. So sad. Please bring back the old formula. Why was it changed to begin with???

      Pros

      Cons

      New formula
      8 of 8 people found the following review helpful.
    • Verified Buyer

      Works as well as the original

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      from NARROWS VA on 1/03/2020
      Very Positive experience when comparing this product with the original

      Pros

      It works

      Cons

      Cost
      review-checkI would recommend this item to a friend.
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Customer Questions and Answers

Please ask any questions you may have about this specific product in the field below.

Your question(s) and our corresponding answer(s) will not be confidential and will be posted publically on this specific product page.

Additionally, PureFormulas is unable to directly recommend products in relation to specific health conditions. Please contact your trusted healthcare practitioner for direct product recommendations.

If you have any general questions regarding orders or our policies and programs, please contact our Customer Happiness Team @ 1.800.383.6008

If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use. Your healthcare professional is the best source for guidance before beginning an exercise or nutritional supplement program.

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.

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