Extra Strength Dietary Supplements
PROS
- Contains vitamin C
- Good source of iron
- Includes biotin
CONS
- Some reviewers report gas pains
Containing a marine complex, as well as biotin, zinc, vitamin C, iron, and horsetail extract, Viviscal “uses vitamins to extend the anagen (growth) phase of the hair growth cycle,” says Dr. Engelman. In a 2015 study published in Dermatology Research and Practice found that after 90 days, adult women taking Viviscal had an increase in hair volume and lost significantly fewer hairs after washing compared to a placebo.
Keranique KeraViatin Hair & Scalp Health Supplements
PROS
- Vitamins B1, B6, and B12 nourish the scalp
- Amino acids promote hair growth
CONS
- Pricey
This supplement packs a range of B vitamins to help the body break down nutrients to nourish hair growth, plus zinc, antioxidant curcuminoids, and amino acids like L-cysteine. “Cystine (which is formed by two cysteine molecules) is an amino acid, which is a protein building block that helps to maintain the structure of proteins in the body—and is one of the most crucial amino acids for hair growth,” says Dr. Jaliman.
