In Vivo Penetration of Bare and Lipid-Coated Silica Nanoparticles Across the Human Stratum Corneum

The conversation discusses using high molecular weight hyaluronic acid after microneedling to form a protective barrier, though it's considered expensive and offers marginal improvement. Users share experiences with different microneedling tools like derma rollers, dermastamps, and Dr. Pen, with some opting not to use any products on the scalp.

Silicone-based shampoos and conditioners may leave a layer on the scalp that could affect the absorption of topical hair loss treatments like Fluridil. The user is considering switching to silicone products to manage frizzy hair but is concerned about this potential issue.

The user is experiencing white flakes and a greasy look from using a topical solution containing 0.025% finasteride, 8% minoxidil, 0.01% retinoic acid, and 1% hydrocortisone. Suggestions include reducing application frequency, using a brush to clean the scalp, and considering alcohol-free alternatives.

Topical finasteride in a liposomal formulation reduces systemic absorption compared to ethanol solutions. The user is seeking sources for such products, noting that popular options like morr-f are not liposomal.

A user is documenting their natural approach to treating a receding hairline using a dermastamp, essential oils (rosemary oil at 3% dilution with pumpkin seed oil), a multivitamin with vitamin D, and daily collagen shakes. They acknowledge the common recommendations of minoxidil and finasteride but prefer to test natural methods and share their results.

The conversation discusses the potential benefits of creating a hydrophobic version of finasteride to reduce systemic side effects while maintaining scalp health. It compares this idea to fluridil, which is designed to be hydrophobic and has less systemic absorption.