filler

I would like to know about the effects of fillers. I understand that hyaluronic acid is injected to replenish collagen lost from the dermis. How is this different from stimulating natural collagen production to fill the area? What is the price range? Since there are so many hyaluronic acid products available, I am wondering if it might be okay to just buy an affordable product to use. Who is this recommended for? Since it is an injection procedure, I worry it might be difficult for very young or very old people. I am considering it because fillers are also used to treat hollow under-eyes and regenerate sunken areas. Please tell me how often I should get them, what the characteristics of fillers are, and their benefits. Also, please let me know the satisfaction rate, the cost relative to the duration of the effects, the procedure time and recommendations, the number of sessions required, and share any positive reviews or examples of the procedure.