Yes,needling is the best out if the two for atrophic scarring.needling is supposed to penetrate to the collagen levels of your skin,basicly the places where you got fat/collagen missing and stimulate its production.

tca penetrates mainly to the epidermis if i am right,basicly the layers in the middle of your upper skin,it does stimulate collagen growth to a certain degree as you need to replace the skin thats peeled off your face,trying to shed the bad skin and replace with newer cleaner more organised skin.

And do you think that i need to combine them ?

or just microneedling can be sufficient in the long therm use ?

Please post with a picture of your scarring so we do not have to guess on treatments for you. You have made several posts with guesses which do not help us assess a closeup of your scar type and offer a solution. If you do not wish to do that find a picture online that is close to your scar type and post it for advice or private message me and I will help you.

@Frenchscarall of this has been put in the FAQ, first post in the acne scar sub, please go there and learn more about what your asking. We can not advise you because we do not know your scar type, your ethnicity, your skin type, how you heal, sensitivity, etc... Typically one can do a treatment every other month, some need more time in between or do not have the down time, scar work takes about 3 years, as you cannot do some treatments because of your situation it will take longer. Go get it done by a DR or med spa. Microneedling again will do nothing for you. It must be combined with other modalities or used as upkeep once you do other treatments to baseline your skin.

Thanks,
BA

I have scar like this and my skin color is like that

Ok thank you...

I suggest the follow knowing your a student, and you do not have alot of money for treatment...

1) Subcision, find a doctor to do subcision on the depressions and inject saline after. As you cannot afford filler do vacuum pumping for 3 weeks after you heal up after the subcision. Keep things from re-tethering. You will need several subcisions but start with one, save up a little and get it done, then do other things till you can do it again.

2) Keep doing your microneedling / dermastamping to the scarred spots.

3) One any icepicks do tca cross

Scar treatment is never one and done. Often people treat over 3 years and get small improvements with each thing they do. Depends on your down time and $$$.

Finally as I put in another post of yours, TCA can be done in dark skin types, you must do retin a cream aka tretinorin and hydroquinone a few weeks before treating and a few weeks after you heal to avoid hyperpigmentation. Some men put concealer medical makeup over the redness as they heal so it's not as noticeable.