I want to know who I should recommend collagen care for!

I've been seeing a lot of collagen care at dermatology clinics and beauty salons lately, so I've become interested and am currently looking into it.

I heard that collagen care is a treatment that replenishes collagen deep within the skin and improves elasticity, so it is especially good for those concerned about loss of firmness or fine lines. However, I am worried because I am not exactly sure what skin type is recommended for collagen care.

I am curious if the effects of collagen care are definitely noticeable if I qualify for it. I see many reviews from people who are recommended for the treatment mentioning smoother skin texture and brighter tone, but I would like to know if satisfaction is actually high when receiving it consistently. I want to determine if I qualify for collagen care before starting, so I would appreciate opinions from those with experience.