Killer Nails®

supports longer, stronger nails + hair*

This high-potency vegan biotin supplement supports nail and hair health for length + strength from root to tip

30 vegan capsules · 30 days
Buy any 3, save 15% · Free shipping over $50

What it does

  • Strengthens nails + hair
  • Improves nail thickness
  • Reduces nail splitting + breakage

How it works

  • Vegan biotin improves hair, nail + cuticle strength

How to take

  • Take 1 capsule, daily, with food

increase in nail thickness**

We formulate with clinically proven nutrients and source with great care. Every ingredient is meticulously tested to ensure that all of our supplements are pure, potent and effective.
  • Non-GMO
  • Triple tested for purity
  • Gluten-free
  • No artificial sweeteners or colors
  • Verified by independent labs for potency

What's Inside

  1. Vegan Biotin

    This B vitamin helps strengthen nails, cuticles, and hair.*


4.6 of 5 stars
76 Reviews
  • Jordyn

    5 of 5 stars
    I didn’t have trouble with my nails breaking or being brittle until about 4 months ago. I didn’t try anything to help my nails until a month ago when I tried this! I noticed a difference in about 2 weeks of taking one tablet daily. Definitely recommend for anyone with nails that break easily
    May 12, 2021
  • Savanna

    5 of 5 stars
    I don't naturally have brittle nails but my new job has me constantly handling rags with chemicals, so I was noticing they were dry and breaking easier. So I decided to get Killer Nails to see if that would do anything and it actually works! My nails are definitely stronger and I notice way less breakage, so now I can grow them to the length that I want. I noticed my hair is looking healthier at the scalp and I feel like it is growing a little faster. Its hard to tell with my hair because its already so long and its only been 2 months but my baby hairs have for sure gotten longer. Try these out, you'll be impressed!
    May 4, 2021
  • Kaelah

    5 of 5 stars
    My nails used to break and be so thin. I’ve been using this product for about 2 months now and let me tell you, it is great! My nails are strong and shiny again! I love this product!
    Apr 27, 2021
  • Nancy

    5 of 5 stars
    I have been taking this regularly for a little over 2 months. I started taking Killer Nails because of all the reviews for hair growth and I had lost so much hair after having Covid 19 that I needed something. I have all kinds of baby hairs coming in it looks like a halo around my head. My told me the other day that what I was doing for my hair to not stop. Haven't noticed much with my nails yet but loving what it is doing for my hair. Hair brush is no longer full of hair. Thank you.
    Apr 23, 2021
  • Sarah

    5 of 5 stars
    I have a noticeable difference in the strength of my nails and their growth
    Apr 19, 2021
  • Courtney

    5 of 5 stars
    This product is awesome! My nails were so brittle and and constantly breaking... I’ve been taking Killer nails for two weeks and my nails are noticeably stronger and aren’t breaking as easily.
    Apr 10, 2021
  • Jill

    5 of 5 stars
    I have noticed my nails are getting stronger after removing my artificial nails they were brittle and breaking , since taking killer nails I have noticed my nails are getting stronger
    Feb 18, 2021
  • Whitney

    5 of 5 stars
    Love this! I have weak nails, that tend to break and chip at the ends, making it hard to wear nail polish. The chipping goes away when I take Killer Nails!
    Feb 11, 2021
  • Emily

    5 of 5 stars
    My whole life I've had a bad habit of either nail biting or picking skin and ever since I was introduced to HUM (March 2020), no lie, my nails are completely restructured. And the little amount of time it took was amazing. I definitely won't change up this one. I notice my hair grows pretty quick as well. But the change in my nails is amazing. I can FINALLY get a REAL gel manicure without having to add a tip or add acrylic on my nails to make them last longer or stress about breaking within 2 weeks. I LOVE this product.
    Jan 17, 2021
  • Dee

    5 of 5 stars
    Legit. Love. I have little patience for nail growth and these surpassed all expectations and showed a lot of progress in a short amount of time!
    Jan 11, 2021