collegechemistrystudent said:
Whyatt said:
What is the main reason for the 1 minute prewash round according to DS LABS?
you need a clean scalp to absorb. Dirt and oil will get in the. But pre-wash with a cheaper shampoo. Baby shampoo is cheap, but might not clean well enough. I'll look and see how bad the ingredients in VO5 is. Maybe I'll pre-wash with that. I'll also add a little propylene glycol to my shampoo.
I recently noticed that there's some shampoos out there that contain strong doses of salicylic acid. Denorex Dandruff Control shampoo actually is 3% salicylic acid. What do you think about using this as a prewash shampoo?
Here's the list of ingredients in the Denorex:
Active Ingredients: Salicylic Acid (3%)
Inactive Ingredients: Cocamidopropyl Betaine, D&C Red 33, D&C Yellow 10, FD&C Blue 1, FD&C Yellow 6, Fragrance, Glycol Distearate, Menthol, Panthenol, Polyquaternium 10, PPG 2 Hydroxyethyl Cocamide, Propylene Glycol, Purified Water, Sodium C14 16 Olefin Sulfonate, Sodium Citrate, Vitamin E Acetate
Doesn't seem to contain SLS or Zinc which is good.
Presumably the acid would increase absorption of the ingredients in the Revita. How long would you need to leave the Denorex on to get a substantial absorption improvement effect? Would 5 minutes be enough? Would leaving this, or Revita for that matter, on for say 15 minutes or so be too damaging to the hair. I assume it can't be that bad since people seem to be leaving strong doses of Retin-A on their hair and scalp for hours before rinsing it off.
Also any thoughts on the effectiveness of salicylic acid versus retin-a? Is retin-a really that much better?
Thanks again