Experts Question Effectiveness of Collagen and Hyaluronic Acid Supplements for Skin Health
In recent years, numerous companies have marketed dietary supplements containing collagen and hyaluronic acid, claiming to improve skin health from within by reducing wrinkles, enhancing moisture, and promoting a youthful appearance. Collagen provides skin strength and elasticity, while hyaluronic acid retains moisture. Both are naturally produced by the body but decline with age, leading to dryness and wrinkles. However, scientific evidence supporting the effectiveness of oral supplements remains inconclusive.
A 2023 scientific review found that hydrolyzed collagen supplements might modestly improve skin hydration and elasticity, though study quality varied and larger, more rigorous trials are needed. Another 2025 review of 23 studies with 1,474 participants showed some skin benefits, but when excluding industry-funded research, the improvements were not statistically significant. Similarly, a study on hyaluronic acid supplements involving 129 women indicated some hydration and skin texture benefits, but the sample size was limited.
Clinical dietitian Luba Ackerman Kochunover explained that collagen is a protein broken down into amino acids during digestion, which the body can use to produce collagen if overall nutrition is adequate. She emphasized that sufficient protein intake and balanced nutrition are crucial, and supplements should not replace a comprehensive diet. GOOM, a company founded by two Israeli reservists, offers a marine collagen and hyaluronic acid gummy supplement called SHINE, priced at 249 shekels for a two-month supply. They highlight ease of use and report some users notice skin improvements after two to four months but caution results vary.
Dr. Yossi Taieb, a senior dermatologist at Beilinson Hospital and Clalit Health Services, expressed skepticism about oral collagen and hyaluronic acid supplements, noting these molecules are broken down in digestion and there is no proof they specifically benefit facial skin. He warned that many positive studies are industry-funded and that supplements may simply add protein without guaranteed skin effects. He also cautioned against excessive vitamin intake, which can cause side effects like acne.
Experts agree the most effective skin care measures remain daily sun protection, avoiding smoking, and maintaining a balanced diet rich in fruits, vegetables, quality proteins, and healthy fats. Dr. Taieb recommends these proven lifestyle habits over costly supplements, stating there is no magic pill or cream to reverse aging. Nutritionist Ackerman Kochunover advises reducing ultra-processed foods to support skin health naturally. Overall, while collagen and hyaluronic acid supplements are popular, their benefits for skin aging are not yet conclusively demonstrated.
