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Sam's Club
Sam's Club
Customer reviews for Member's Mark Biotin 10,000mcg with Keratin 100mg Capsules, 250 ct. for
Member's Mark Biotin 10,000mcg with Keratin 100mg Capsules, 250 ct.
4.8 out of 5 stars
stars1,043 ratings268 reviews
  1. 5 stars87% (907)
  2. 4 stars9% (90)
  3. 3 stars2% (23)
  4. 2 stars0% (5)
  5. 1 star2% (18)

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Showing 181-190 of 268 reviews
Mar 12, 2023
So Good
5 out of 5 stars review

Impressed

I had a lot of hair shedding & thinning for about two-ish months after having covid. I have been taking 2 of these each morning for about 3 months now. I've really noticed a difference in my hair filling in and has grown some in length.

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Jan 3, 2022
Candice
1 out of 5 stars review

2 different pills

I have no idea what I’m taking. The bottle contains two different pills. Both are in a clear capsule, but one is brown and the other is cream. I’ll stick with the name brand.

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Jun 8, 2018
PattyW
1 out of 5 stars review

DO NOT TAKE Members Mark 10000 mcg Biotin

STOP! Do NOT take this product. After taking one capsule a day for 6 days, I broke out with a red, itchy rash that covered my entire jawline, down both shoulders and shoulder blades, and my entire chest area. It was horrible! I had never had this happen before when taking Biotin. I immediately stopped taking it. After ten days of treating it with Cortisone 10, and constantly applying a heavy layer of body cream I am left with brown crusty scabs on the entire area. The skin on my face and upper arms also peeled off like I had had a Chemical Peel. After researching , I found this reaction is common with taking to much Biotin. I am going to contact Sam’s Club about this product.

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Nov 21, 2025
Syed
1 out of 5 stars review

why is it out of stock

out of stock

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Mar 14, 2025
Bring it back
5 out of 5 stars review

null

Bring it back. It works

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Jul 18, 2021
mer
5 out of 5 stars review

biotin

i love that it's only 1 small pill to take

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Aug 10, 2021
Les
5 out of 5 stars review

Biotin

I’ve been using the Members Mark Biotin for a while now. It seems to be very effective.

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Jul 7, 2021
Hillbilly
5 out of 5 stars review

A product that gives results

Seems to be a very good product. It has regulated the growth of my nails. Ridges and irregular areas are smooth since I have been taking this.

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Jan 25, 2022
Sassysharbear
5 out of 5 stars review

works great!

I have been taking these biotin supplements for over a year (during COVID) and I'm amazed at how strong my hair and especially nails have gotten! I would definitely recommend this brand!

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Aug 11, 2018
Cindy
5 out of 5 stars review

I love that I don't have to chew these

I used the chewable biotin for about a year and had great results with my thining hair and brittle nails. I tried to reorder and they out of stock, so I purchased these. They work equally as well and they are a pill that I can swallow. I do not like chewable vitamins. I have recommended these to my friends with similar hair and nail issues

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