Seborrheic Keratosis

Currently working on this. (Yes I know, but I don't live in the USA so I don't worry about the FDA.)
Looking for input from anyone else with an interest in SK. I have a candidate compound which shows promise: DMAE Tartrate. A 3% cream appears to have a discernible result. I'm thinking of adding urea to the mix, not sure what percentage of urea to use ... I don't want pH drift problems.
Design of anti-aging creams, gels, and serums; shampoos; and therapeutic cosmetics. In-house label and box design capability.

Comments

  • I'd suggest 5-10% urea. 
    As you said, urea will degradate and increase the pH. You will need a buffer to maintain urea stable. 
  • Can you suggest a suitable buffer? Would sodium citrate work?
    Design of anti-aging creams, gels, and serums; shampoos; and therapeutic cosmetics. In-house label and box design capability.
  • I made a water based solution which had salicylic acid/sodium citrate and urea. The pH was 5.5 and remained unchanged for a few days.
    I have seen some products in my local market with high concentration of urea (15%, 30%) which are w/o emulsions (creams). I think, the less water is used the better for urea is to be stable.
  • Hola' Belassi. Long time/no blog. Urea compositions are best stabilized with lactic/lactate buffers at pH <6.  The threshold of use for keratolysis is around 10%.  At 40% you can dissolve the nail sheath if left on overnight. Cool, huh? uhhh...maybe not.
  • Unfortunately I have not been able to source any kind of lactic acid products here in Mexico. Maybe I should use yoghurt as a base!
    Design of anti-aging creams, gels, and serums; shampoos; and therapeutic cosmetics. In-house label and box design capability.
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