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Benefits of Hyaluronic Acid

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Evidence-Based Benefits

  • Skin hydration — a 12-week RCT (n=60) found 120 mg/day of oral HA significantly increased skin moisture compared to placebo (Oe et al., 2017)
  • Wrinkle reduction — an RCT (n=60) showed HA supplementation at 120 mg/day reduced wrinkle depth by 40% after 12 weeks compared to placebo (Oe et al., 2017)
  • Skin elasticity — a study (n=72) demonstrated that oral HA at 240 mg/day improved skin elasticity and skin roughness after 12 weeks (Kawada et al., 2014)
  • Wound healing support — HA is integral to the wound healing cascade, with studies showing it promotes fibroblast migration and angiogenesis at wound sites
  • Dry skin relief — a clinical study (n=42) found that 4 weeks of oral HA supplementation significantly improved dry skin symptoms in participants aged 22-59 (Sato et al., 2017)

What the Research Says

Oral hyaluronic acid supplementation has been validated by multiple well-designed RCTs. Oe et al. (2017) conducted a landmark double-blind, placebo-controlled study showing that 120 mg/day of low-molecular-weight HA significantly increased skin moisture and reduced wrinkle depth in Japanese adults over 12 weeks. Kawada et al. (2014) similarly demonstrated improvements in skin elasticity and roughness with 240 mg/day. A systematic review by Hsu et al. (2021) concluded that oral HA supplementation consistently improves skin hydration across studies, with molecular weight being a key factor in absorption — low-molecular-weight forms (< 300 kDa) showing superior oral bioavailability. Isotope tracing studies have confirmed that ingested HA reaches the skin within 24 hours.

Related Conditions

Skin AgingDry SkinWound Healing
Full Hyaluronic Acid Guide

References

  1. (). Oral hyaluronan relieves wrinkles: a double-blinded, placebo-controlled study over a 12-week period. Clinical, Cosmetic and Investigational Dermatology. DOI
  2. (). Ingested hyaluronan moisturizes dry skin. Nutrition Journal. DOI
  3. (). Oral hyaluronan relieves skin dryness and wrinkle: a systematic review. Journal of Cosmetic Dermatology. DOI
  4. (). Clinical effects of dietary hyaluronic acid on dry, rough skin. Aesthetic Dermatology.