ToF-SIMS Characterization of the Lipid Layer on the Hair Surface: Effect of the 18-MEA Lipid Layer on Surface Hydrophobicity

    Masayuki Okamoto, Noriyuki Tanji, Taichi Habe, Shigeto Inoue, Shinichi Tokunaga, Hiroto Tanamachi
    TLDR 18-MEA is essential for hair's water resistance, and a conditioner with 18-MEA and SPDA can restore it.
    This study examined the impact of 18-MEA damage on hair surface hydrophobicity and the effectiveness of replenishing this lipid layer using ToF-SIMS. It was found that 18-MEA levels significantly decreased in Japanese women who underwent coloring treatments, especially those treated more than twice a year. Even untreated hair showed over 80% loss of 18-MEA at 40 cm from the root. The study demonstrated that 18-MEA is crucial for maintaining surface hydrophobicity. A conditioner treatment combining 18-MEA with Stearoxypropyldimethylamine (SPDA) was effective in restoring and maintaining hydrophobicity and reducing friction on damaged hair surfaces.
    Discuss this study in the Community →

    Related Community Posts Join

    6 / 1000+ results

      community Regrowth 21 months, fin, 41 Male

      in Progress Pictures  592 upvotes 1 year ago
      A user shared their 21-month hair regrowth journey using oral Finasteride 1mg daily and Minoxidil 5% topical applications. Despite initial discouragement due to slow progress, they saw significant improvement, reducing the need for a hair transplant to minor fill-ins at the front hairline.

      community My microneedling journey (no min, fin, etc)

      in Microneedling  194 upvotes 1 month ago
      The user experienced positive hair growth results using microneedling with rosemary and mint oil, without Minoxidil, Finasteride, or RU58841. They switched from a dermaroller to a microneedling pen and targeted different scalp areas weekly.

      community M26 - 9 months after hair transplant! AMA

      in Transplants  624 upvotes 4 years ago
      A user who underwent a hair transplant in Istanbul to reduce balding, and the discussion of various treatments such as finasteride and growth hormone for preventing further hair loss.

      community Comprehensive Microneedling Guide

      in Microneedling  293 upvotes 2 years ago
      Microneedling for hair restoration involves daily use of a 0.3 mm device and weekly use of a 0.5 mm device. Combining microneedling with Minoxidil can enhance hair growth.

      community What was your “f*ck I’m balding” story?

      in Chat  178 upvotes 1 year ago
      User noticed thinning hair at 18-19, started finasteride at 22 and minoxidil at 24, with positive results. Others shared hair loss experiences and treatments, including finasteride, minoxidil, and hair transplants.

    Similar Research

    5 / 1000+ results