What is the primary benefit of microdermabrasion according to the text?

The primary benefit of microdermabrasion is to improve epidermal strength. This treatment involves a mechanical exfoliation technique that sloughs off the outer layer of dead skin cells, promoting the renewal of skin cells. As the skin's surface is gently abraded, it encourages the production of new, healthier skin and can enhance the overall structure and firmness of the epidermis. This process not only improves the texture of the skin but also helps in reducing the appearance of fine lines and improving the skin's resilience.

The other options, while they may be associated with different skin treatments or conditions, do not accurately reflect the primary benefit of microdermabrasion. For instance, stimulating hair growth is not a purpose of this procedure, nor is it typically used for removing warts or enhancing collagen production, which requires deeper treatments or specific procedures like dermal fillers or laser therapy.