To put it simple words: Cell turnover is the process of shedding dead skin cells naturally and subsequently replacing them with new cells. The dead skin cells travel to the surface, which is sloughed off in a process called desquamation.
As we age, the rate at which dead skin cells shed away by skin slows down, resulting in an accumulation of a layer of dead skin cells, making the surface uneven and dull.
While the process is natural and your skin can handle the cell turnover process just fine on its own. Eventually, with age the rate at which dead skin cells shed away by skin slows down, resulting in an accumulation of a layer of dead skin cells, making the surface uneven and dull. This is where exfoliation comes into the scene. Exfoliation helps to gets rid of those accumulated dead skin cells and speed up the process.
How Cell turnover helps in improving acne?
Acne-prone skin is unable to shed off dead skin cells naturally. A built-up dead skin cell on skin surface further worsens the acne. Therefore an outside means to get rid of those dead cells is necessary. Chemical exfoliants loosen up the underlying dead skin cells to come on the surface while Physical exfoliators come in the form of scrubs and gels usually with use small granules physically remove dead skin cells.
How to speed up cell turnover?
Retinol is the real gold-standard ingredient for cell turnover. As we age, the cell turnover rate slows down, and visible signs of ageing such as fine line, wrinkles, etc. start to appear, in such a case, retinol speeds up the process for desquamation of dead skin cells.
Retinol is an active ingredient of vitamin A family. It is a proven anti-ageing, antioxidant, skin-restoring, firming ingredient. It works at the cellular level of the skin and promotes collagen production. It has anti-acne benefits and also prevents clogging of pores.
However, retinol is photosensitive, so always use broad-spectrum sunscreen when you are using retinol-based products. Since it is an active ingredient, it may cause purging, redness, skin inflammation and dryness.
Ideally, one must consult his derm before starting using retinol.
Glycolic acid is widely used alpha-hydroxy acids in the skincare. Glycolic acid penetrates the skin and loosen the bond of dead skin cells, allowing them to fall off and thus speeding up the process of exfoliation and make way for newer and smoother skin, It can help to boost skin’s collagen production that results in firmer, younger skin.