BioStacksVitamin C and hair
Vitamin C plays a supporting role in hair. Potent antioxidant and cofactor for collagen synthesis, immune function, and iron absorption. Liposomal vitamin C provides significantly higher bioavailability than standard ascorbic acid by encapsulating the molecule in phospholipid spheres for enhanced cellular uptake.
What dose to look for
Clinical studies typically use 250–2000 mg of vitamin c. Common supplement range; UL is 2000 mg/day. Supplements that fall short of this threshold are unlikely to match what clinical trials achieved.
What form to look for
Avoid ascorbic acid — standard form — absorption drops above 1,000mg. Avoid ester-c — marketing claims, unclear benefit over standard forms. Avoid ascorbyl palmitate — fat-soluble form, limited bioavailability data. For best results, choose calcium ascorbate or liposomal vitamin c.
What the research says
The clinical evidence for vitamin c in hair is strong. Cochrane review of 29 trials found it reduces cold duration 8% in adults; key cofactor for collagen synthesis Learn more
Viviscal
Viviscal Advanced Hair Health
ascorbic acid · 59 mg
MegaFood
Skin, Nails & Hair 2
ascorbic acid · 200 mg
Solgar
Skin, Nails & Hair
ascorbic acid · 120 mg
MegaFood
Skin, Nails & Hair 2, 90 Tablets
ascorbic acid · 200 mg
Nature's Way
Nature's Way Zinc Lozenges with Vitamin C & Echinacea, Wild Berry Flavored, 60 Vegan Lozenges
ascorbic acid · 100 mg
Swanson
Zinc & C with Elderberry & Echinacea, Orange & Lemon, 60 Lozenges
ascorbic acid · 100 mg
Nature's Way
Alive! Hair, Skin & Nails Gummies Strawberry Flavored
ascorbic acid · 135 mg
Mary Ruth's
Liquid Morning Multivitamin + Hair Growth Peach Mango 450ml
ascorbic acid · 90 mg
Mary Ruth's
Liquid Morning Multivitamin + Hair Growth Peach Mango 887ml
ascorbic acid · 90 mg
21st Century
Extra Strength Hair, Skin & Nails
ascorbic acid · 60 mg