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Glycolic Peels – Why?

Cosmeceuticals – Dissecting the Facts

Glycolic Peels – Why?

Cosmeceuticals – Dissecting the Facts

Alpha Hydroxy acids (AHAs) – Advanced facts:
Stiller et al 1] – Level of evidence IA. A double-blind vehicle-controlled clinical trial

  • 74 women over 22 weeks
  • ameliorating some of the signs of chronic cutaneous photodamage”

Tsai et al 2] – Comprehensive review of Literature

  • Long-term use of Glycolic Acid improve skin texture and
  • Youthful appearance – AHA’s induce glycosaminoglycan and collagen synthesis in the dermis leading to improved dermal hydration and thickness”
  • AHAs act as exfoliators – detaching keratinocytes from the stratum-corneum = smoother skin.
  • Stimulate fibroblasts = increased collagen production.
  • Increased turnover of keratinocytes improves dyspigmentation
  • Keratinolytic activity of AHAs improves penetration of other agents such as hydroquinone and Tretinoin. (always add AHA combination with HQ and Tret)
  • Glycolic acid also has anti-inflammatory properties and does not induce angiogenesis hence it can be used if patients have photo-induced telangiectasia or rosacea.
  1. Stiller, M.J., Bartolone, J., Stern, R., Smith, S., Kollias, N., Gillies, R. et al. 1996. Topical 8% glycolic acid and 8% L-lactic acid creams for the treatment of photodamaged skin. A double-blind vehiclecontrolled clinical trial. Arch. Dermatol., 132(6):631–6.
  2. Tsai, T. & Hantash, B., 2008. Cosmeceutical Agents: A Comprehensive Review of the Literature. Clinical Medicine: Dermatology, Volume 1, pp. 1-20.