Naomi Watts Loves This Collagen Powder For Healthy Hair — Here's Why It Works

Naomi Watts knows a thing or two about clean beauty. In fact, when the actress, mom, and co-founder of Onda Beauty (a curated clean beauty retailer) sat down with the New York Times to discuss her ride-or-die products, she name-dropped many of our all-time favorite clean beauty staples—including our very own beauty & gut collagen+.

Quick caveat: While collagen supplementation has been quite extensively studied for skin benefits, the body of research on hair health isn't as large (yet). (We guess it's just lower on the totem pole of research focus areas for researchers right now.)

Plus, we know that shielding hair follicles and strands from oxidative stress is crucial to keep them healthy and full. Free radicals that come from UV rays, pollution, stress, et al., can lead to oxidative stress in the body—your skin and hair included. In order to combat this oxidative stress, it helps to call upon free-radical fighters like antioxidants.* We included vitamins C and E, plus curcuminoid-laden turmeric and broccoli-sourced sulforaphane, in our beauty & gut collagen+ blend for this very reason (antioxidant power and benefits).*

Next, the essential B vitamin biotin is actually required for healthy hair at a cellular level, as it is involved in the production of keratin1, the main structural protein component of hair.* We think way more research is needed on biotin and hair, but science has demonstrated that inadequate biotin levels2 (i.e., biotin status in the blood) are relatively common in women dealing with hair loss. Furthermore, a small study in women did report hair growth when supplementing with biotin (as part of a multi-ingredient supplement with other nutrients and bioactives like vitamin C, zinc, horsetail, and more) compared to those given a placebo.* Hence, the 500 micrograms of biotin in each serving of our supplement blend.