Skin, Hair and Nail Problems

I'm a teenager with acne-prone skin. I've noticed dark patches on my forehead. Could this be acanthosis nigricans or something else?

Is vitamin c serum safe to use on face while breastfeeding? If not which serum can i use as i need something for my skin to feel good

I am 28M and i am having a lot of hairfall. Probably alopecia genetic. How donI stop it? I was thinking about getting a hair transplant but that would put me on finisteride anyway. I have enough hair right now to keep myself up on fin and maintain it without transplant. But the concern is i have gone through the experience of many people on reddit who used finisteride for long, they have mentioned they got ED and watery semen at some point for sure. I am scared if I will have those side effects. Is it possible to take the fin at a lower dose like twice a week or something to maintain the lower level of DHT? Please guide me, m gonna get married in 2 years and don't want to get bald. Please help me.

My 12-year-old son has started developing dark, velvety patches on his armpits. Could this be acanthosis nigricans? Should I be worried?

As a person with sensitive skin, I'm worried about using scar removal products. What are my options?

I'm an elderly person with a scar from a fall. Will it ever completely fade?

I'm a busy working professional with a scar on my hand. Are there any quick fixes?

As a teenager, I'm conscious of a scar on my face. How can I boost my confidence?

Can sunscreen help prevent or fade scars?

Are there any natural ingredients that can help fade accident marks?