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Killer Nails®

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

✓ Helps strengthen nails + hair
✓ Supports nail thickness
✓ Helps reduce nail splitting + breakage

Subscribe & Save 20%

Regular Price: $12
Sale Price: $6.72
  • Extra 20% off when you subscribe
  • Free Samples
  • Ships monthly. Modify your box, pause or cancel at any time.

Sale 30% off + free Shipping on Orders $49+

25% increase in nail thickness in people with brittle, splitting, or soft nails**

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.

  • Verified Clean Ingredients
  • Clinically Tested Actives
  • Triple Tested & 3rd Party Validated for Purity & Quality
  • Formulated by RD Nutritionists
  • Free of The Tricky 12
  • No Artificial Colors, Sweeteners, Flavors & Preservatives

What's Inside

  1. Vegan Biotin

    Vegan Biotin

    This B vitamin helps strengthen nails and hair.*

  2. Selenium

    Selenium

    Plays a role in maintaining hair and nail health*

Reviews

FAQs

  • Can I take Killer Nails® with Hair Strong Gummies?

    Because of the high amount of biotin in each supplement, we don’t suggest taking them together as it may cause breakouts.

  • Can Killer Nails® also help my hair?

    Yes! Killer Nails® contains biotin which can also support hair health.

The HUM Subscription: Wellness on Your Terms

  • Save 30% on every order - simply bundle and subscribe.
  • Earn loyalty points
  • FREE samples with every order
  • Switch or pause at any time–you’re always in control
Offer valid until 3/31/25 at 11:59pm PST. Must use code WELLNESS to redeem. Valid for 30% off first purchase of $49 minimum and $500 maximum value (before tax, shipping, and discounts). Offer valid on humnutrition.com only. Offer may not be used in combination with any other promotion code and are for one-time use. Offer may be used in combination with subscription discount and Buy three Saving discount. Offer may not be used in combination with third-party loyalty, reward, or cash-back programs. Offers cannot be applied to existing subscriptions, previously placed, or pending orders. Offers apply to authorized purchases only. Only authorized orders will be processed and shipped. We reserve the right to cancel any order due to unauthorized, altered, or ineligible use of the offer and to modify or cancel this promotion due to system error or unforeseen problems. Other restrictions may apply.
Offer valid until 3/31/25 at 11:59pm PST.Offer will automatically apply at check out. Valid for 30% off purchase purchase of $49 minimum and $500 maximum value (before tax, shipping, and discounts). Offer Valid on humnutrition.com only. Offer may not be used in combination with any other promotion code and are for one-time use. Offer may be used in combination with subscription discount and buy three saving discounts. Offer may not be used in combination with third-party loyalty, reward, or cash-back programs. Offers cannot be applied to existing subscriptions, previously placed, or pending orders. Offers apply to authorized purchases only. Only authorized orders will be processed and shipped. We reserve the right to cancel any order due to unauthorized, altered, or ineligible use of the offer and to modify or cancel this promotion due to system error or unforeseen problems. Other restrictions may apply.
Offer valid until 4/20/25 at 11:59pm PST. Offer will automatically apply when subscription is processed. Valid for $10 off when you add a new product and the subtotal exceeds the previous order’s subtotal and meet the minimum order requirement of $49. Offer valid on humnutrition.com only. Offer valid on active subscriptions only. Offer will apply on qualifying subscription orders with a ship date scheduled between 3/20/2025 and 4/20/2025. Offer may not be used in combination with any other promotion code and are for one-time use. Offer may be used in combination with subscription discount and Buy three Saving discount. Offer may not be used in combination with third-party loyalty, reward, or cash-back programs. Offers cannot be applied to previously placed, or pending orders. Offers apply to authorized purchases only. Only authorized orders will be processed and shipped. We reserve the right to cancel any order due to unauthorized, altered, or ineligible use of the offer and to modify or cancel this promotion due to system error or unforeseen problems. Other restrictions may apply.