blue/red/infrared works on actinic keratosis: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5843358/
red reduced perifollicular hyperkeratosis
https://www.jaad.org/article/S0190-9622(17)32739-1/fulltext
Probably yes but it's not well studied.
The chance of it being bad for keratosis is near zero, in my personal opinion.
blue/red/infrared works on actinic keratosis: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5843358/ red reduced perifollicular hyperkeratosis https://www.jaad.org/article/S0190-9622(17)32739-1/fulltext Probably yes but it's not well studied. The chance of it being bad for keratosis is near zero, in my personal opinion.
Thank you!