Keratin Enhance | GNC

ResVitále™ Keratin Enhance


Item # 446721


Size: 60 Capsules

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Note: This product cannot be sold in Canada


Product Information


Keratin Enhance with Biotin and Resveratrol presents the latest advancement in beauty supplements.* Incorporating Cynatine® HNS Keratin, a patented form of keratin that is easily absorbed by the body, this formula offers optimal nourishment and repair for youthful hair, nails and skin.* Keratin Enhance with Biotin and Resveratrol helps reduce fine lines and wrinkles, decreases hair loss and promotes healthy, strong nails.* Satisfy your body with this essential support for age-defying beauty.*

THE ART ResVitále introduces the world’s first Solubilized Keratin – a recent breakthrough in beauty supplementation.* Cynatine® HNS Keratin is manufactured using a patented process that makes it both bioactive and bioavailable.*

  • Patented, absorbable form of keratin*
  • Reduces fine lines and wrinkles*
  • Supports thicker, fuller hair*
  • Promotes stronger, nourished nails*
THE PROOF Studies have shown that Cynatine® HNS reduced hair loss from washing by 30% over 90 days.

Label (click image to enlarge)


As a dietary supplement, take 2 capsules daily with meals or as directed by your health care practitioner. For best results, take for a minimum of 90 days.


Keep out of reach of children.
, DO NOT USE IF OUTER SEAL IS BROKEN OR MISSING., As with any dietary supplement, consult your health care practitioner before using this product, especially if you are pregnant, nursing, have existing medical conditions or are taking prescription medications.

Other Ingredients

Vegetarian capsule (vegetable cellulose), Rice bran , Silica


Store tightly closed in a cool, dry place.
MANUFACTURED FOR RESVITÁLE 701 S. Howard Ave., Suite 106-310 Tampa, FL 33606

Nutrition Facts

Serving Size  2 Vegetarian Capsule(s)
Servings Per Container  30

Amount Per Serving     % DV

Biotin 3000mcg   1000%

Cynatine® HNS (Solubilized Keratin)  500 mg   **
Organic French Red Wine Polyphenol Extract  40 mg   **
Quercetin Dihydrate  20 mg   **

** Daily Value (DV) not established.


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Browse 2 questions Browse 2 questions and 1 answer
Can I take this and also my ultra mega over 50 multivitamin?
Anderson J on Feb 23, 2018
Does it help with hair loss?
Armie on Feb 23, 2018
BEST ANSWER: I had been taking another vitamin that actually was causing hair loss on me. I then switched to the Keratin Enhance and my hair loss slowed back to normal (less that 50 per day). I had actually started taking this to help with thin, splitting, peeling, brittle nails and it worked very well for that also.
4.6 / 5.0
30 Reviews
5 Stars
4 Stars
3 Stars
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1 Stars
Love it!
I love it its amazing!
February 24, 2018
8 months ago
Noticed nail growth
Not at all worth the price. Saw no increased growth with my hair. But i did however, notice my nails grew longer than normal. You might as well just take a whole bunch of Biotin daily.
January 9, 2018
Short term use, but good results
I started using this a 2-3 weeks ago so I haven't used it long, but I have noticed a few small differences. I have almost always had fairly weak, brittle nails that just about always have breaks or chips in them. Since staring this, my nails have starting growing faster so I have been able to file out the breaks before they can run up higher. About a week ago my nail was bent backwards and broke about 1/3 of the way from my cuticle to the end of my nail and has already grown out! I haven't noticed much with my hair other than it feeling better, but I will try to update when I do.
August 13, 2017
7 months ago
It's really awesome!!
I didn't think it would work so fast but within a couple of weeks I could FEEL my nails getting stronger... now I can wash my hair with breaking a nail!!!
August 3, 2017
7 months ago
I love this stuff!! My nails are looking soo good and strong after and my hair too!! So worth it
July 26, 2017
7 months ago
Makes my hair healthy and shiny. Tried other products because of the price, but I keep going back - others are not as good.
July 22, 2017
8 months ago
Great Product
I've been using this for about a month and has already seen a difference in my nails and hair. You have to be committed to it for three months and Im ordering my second bottle today! I will keep you updated!
June 24, 2017
Been on it thirty days as of now, have seen some new growth. Hope to continue
May 31, 2017
9 months ago
Medication I am on caused significant hair loss, but this has greatly slowed that down to where a just lose a few strands when washing my hair. I stopped it for a while and the hair started falling out again in bunches. Went back on this and the hair loss slowed again. Definitely helps.
December 29, 2016
Results are AMAZING!
I'm a 42 year-old female, and after undergoing chemo, my hair grew back quickly. However, a few months ago, I noticed that my hair was thin in spots, so I decided to look into hair supplements. I had been using one of GNC's formulas for hair/skin/nails for about a year, and had "ok" results. But I still had a lot of breakage, wads of hair coming out in the shower and in the brush, and my hair was difficult to manage and tangled easily. (This despite a pretty good diet, good hair products, and high-end styling tools.)

I took a chance on this product, and ordered two bottles on sale. I'm now working on my second bottle. I'm normally a skeptic on these things but I have been really impressed by the results I've seen. I see less hair loss now both in the shower and brushing my hair. I am absolutely amazed that I have a little patch of hair that is rapidly lengthening across my forehead, where before it was just tiny wisps that I thought nothing of, since they never seemed to grow. The thin areas that bothered me are filling out really quickly and as a bonus, my normally thin weak nails have been growing just as nicely.

I have now decided to add this product permanently to my vitamin regime. If you are on the fence, just try two bottles. If it doesn't work, you can get your money back. But this product is so wonderful, I'm betting you won't want to! :)
November 20, 2015