Three-Dimensional Analyses of Touch Domes in the Hairy Skin of the Cat Paw Reveal Morphological Substrates for Complex Sensory Processing

Fatty acid metabolic signaling can activate epithelial stem cells for hair regeneration. Oleic and palmitoleic acids showed the best results, but practical application on humans remains uncertain.

A gel of keratin microspheres promotes hair follicle growth, showing similar effectiveness to minoxidil in mice. The treatment activates hair growth pathways and reduces inflammation, with potential applications in drug delivery for hair-related disorders.

Microneedling can cause a sneezing reflex due to tingling in the nose. Users report this reaction, especially in the temple region.

A user discusses their experience with at-home microneedling at 1mm for hair growth, feeling like they're hitting their skull. Other users suggest lowering the needle depth or stopping due to discomfort.

The "crunching" sound during microneedling is likely the needles penetrating the scalp's outer layers, not cutting hair. Users suggest using a derma stamp instead of a roller to avoid potential hair damage.

The user has been using topical finasteride and minoxidil for two years with decent regrowth and recently added microneedling to their routine. They are questioning if the small hairs observed are new regrowth from microneedling or just vellus or miniaturized hairs.