Question

Skin creams that claim to stop the process of aging is a billion-dollar business. What are the differences between young and old skin? What factors can impact the aging process? What are some of the ingredients in these skin creams that make these claims? What do you think? Do they work?

Answer 1

Young skin renews itself approximately every month. The deepest layer of the epidermis — the stratum basale — is mostly comprised of keratinocytes and is responsible for renewing the skin. Keratinocytes produce keratin, the protein that protects the skin from chemical products and bacteria. Keratinocytes slowly migrate from the basal layer up toward your skin’s surface, dividing and changing as they go.

As you age, skin cell turnover slows. As a result, dead skin cells build up on the skin’s surface, making skin look duller.

In old skin, collagen production decreases and skin’s ability to repair collagen and elastin decreases, resulting in wrinkles and loss of elasticity. Young skin has thick bundles of tightly packed collagen while older skin has thin, loose bundles of collagen.

In the old skin, there’s decreased blood flow through the dermal capillaries. Fewer nutrients reach the epidermis, leading to thinning of the epidermis, slower cell turnover rate and a reduction in the barrier function of the epidermis. These changes lead to increased water loss and dry skin. Skin cells have 30 percent less natural moisture.

ingredients:

• Retinol. Retinol is a vitamin A compound, Antioxidants are substances that neutralize free radicals. Free radicals be are unstable oxygen molecules that break down skin cells and cause wrinkles.
• Vitamin C. Another potent antioxidant, vitamin C may help protect skin from sun damage.
• Hydroxy acids. exfoliants — substances that remove the upper layer of old, dead skin and stimulate the growth of smooth, evenly pigmented new skin.
• Coenzyme Q10. help reduce fine wrinkles around the eyes and protect the skin from sun damage.
• Peptides. For wound healing, stretch marks and wrinkles.
• Tea extracts. antioxidant and anti-inflammatory properties.
• Grape seed extract. antioxidant and anti-inflammatory. promotes wound healing.
• Niacinamide. antioxidant. It helps reduce water loss in the skin and may improve skin elasticity.

effectiveness-

the effectiveness deppends on the ingredients.

These creams may help in skin looking younger but it cannot reverse the damage. It cannot change the genetics of skin.