supports longer, stronger nails + hair*
This high-potency vegan biotin supplement supports nail and hair health for length + strength from root to tip
What it does
- Helps strengthen nails + hair
- Supports nail thickness
- Helps reduce nail splitting + breakage
Helps strengthen nails + hair
71 participants with nail problems took 2.5mg of biotin per day. After 5 ½ months, 91% had firmer and stronger fingernails. 
In a study of women with complaints of hair loss, 38% of them were found to be deficient in biotin. 
Supports nail thickness
32 participants with brittle, splitting, or soft nails took 2.5 mg of biotin per day. After 6 months, they had a 25% increase in nail thickness.
Helps reduce nail splitting + breakage
32 participants with brittle, splitting, or soft nails took 2.5 mg of biotin per day. After 6 months, they had improvements in their nail thickness, leading to less splitting and breakage. 
How it works
- Vegan biotin supplement strengthens nails and hair
How to take
- Take 1 capsule, daily, with food
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
This B vitamin helps strengthen nails and hair.*
Selenium plays an important role in maintaining skin health.*
Can I take Killer Nails® with Hair Sweet Hair™?
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.
Is Killer Nails® made in an FDA-approved facility?All of our products are made in facilities that are certified to follow GMPs (Good Manufacturing Processes), required by the FDA. This means our manufacturers have specific quality standards to ensure every product has the right identity, purity, strength and composition.
Is Killer Nails® vegan?Yes, Killer Nails® is vegan and it is certified by Vegan Action.
Is Killer Nails® gluten-free?Yes! All HUM products are gluten-free and tested to ensure gluten isn’t present at levels greater than 20ppm, which is the regulatory criteria for “gluten-free” set by the FDA.
Is Killer Nails® non-GMO?Yes! All HUM products are non-GMO.
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