There are documented side effecs including resulting in patchy skin, redness, dermatitis, allergic reactions, pigmentation and scarring, and for some people even swelling of the skin.
Source: Canva
According to Dr. Rashmi shetty, dermatologist, "All this is because, while driving in certain vitamins and nutrients into the skin using micro nutrients into the skin using micro needling is normal and good, driving in non-degradable make up like tinted pigment is not!"
Source: Canva
Additionally, micro needling itself must be done with an experienced/well trained technician because, if not done right, it could cause pigmentation and scarring.
Source: Canva
Firstly, the micro needling equipment is worked around the face by a technician, making it go round and round.
Source: Canva
There is no way we can ensure that the tinted pigment gets deposited evenly. Therefore leading to an uneven, patchy skin.
Source: Canva
Secondly, semi permanent is a very subjective term. You may be putting your skin through danger / trauma / damage- for just a week of brighter skin.