Rachael Link is a registered dietitian and health writer based in San Francisco. She completed her undergraduate degree at the University of Central Missouri and holds a master’s degree from New York ...

Medically reviewed by Mary Choy, PharmD Hyaluronic acid is a molecule that attracts and holds onto water, keeping connective tissue moisturized and healthy.Taking oral hyaluronic acid supplements can ...

Take a closer look at the promising benefits and persistent controversies of collagen supplementation, including what’s proven, what’s emerging, and what remains uncertain. Collagen accounts for up to ...

Collagen is a protein and component in connective tissue in the body, while biotin is a vitamin. Both play important roles in the health of the skin and hair, but it is unclear if either is ...

Pregnancy affects all parts of life — it heavily changes your routines, your diet, and your body, but lesser known is how much it can affect your skin care. Not only can your skin concerns change when ...

No doubt, “collagen skin care” is a buzzy phrase in the beauty world. Along with retinol and peptides, when collagen is on a label, folks pay attention—it gives off an unspoken this stuff must really ...

Having healthy skin on the outside of our bodies reflects what’s inside our bodies. The nutrition that we consume—be it through diet or supplements—can help or hurt the largest organ of the body. Our ...

Alyssa Northrop is a registered dietitian, nutrition writer, speaker and licensed massage therapist based in Minneapolis, Minnesota. She received a Master of Public Health in human nutrition from the ...