The outermost layer of skin consist of dead cells that are constantly shed and replaced by new cells coming up from the deeper layer of skin. Keratosis Pilaris is a condition in which the dead cells do not shed as they should. The pores with hair follicles are basically clogged with skin flakes and this makes the skin bumpy. You have to remove the debris. That needs quite some “aggression” directed towards your skin.
You could try a pumice stone:
Experiment with the applied pressure and frequency of using it. It should not leave bad scratches but you should apply enough pressure to remove those excessive flakes that are stuck. Pumice is more efficient when used dry on dry skin. Your skin has to get used to it, do not give up if the initial reaction of your skin is irritation.
Keep the pumice clean by soaking it in hot water with some dishwashing detergent and rinse it well. You can put it in the dishwasher as well but since it's very light you should put a cup over it to keep it in place.
Dermarolling speeds up the skin’s turnover but in the case of KP you need to target mainly the clogging of the hair follicle pores (full of skin flakes) and forcefully remove them. I think that pumice is a better choice in this case.
If you decide to use a dermaroller, buy one with a needle length of 0.2 mm and use it every other day or in this case even daily.
If it stings, do not apply apple cider right after pumice or dermarolling. Apply coconut oil only or almond oil or a lotion with urea (for example Eucerin with 10% urea).
The best is to apply
containing urea and salicylic acid. Salicylic acid is a keratolytic (helps shedding skin cells.)
If your skin is inflamed (red and itchy), dissolve Aspirin (
Paracetamol but Aspirin) in a little bit of water, spread it over your skin and when it absorbs, apply your usual oils or lotions.
Let me know how it goes. If pumice doesn’t help I can think of another approach.