Skin Encyclopedia

An evidence-based skincare reference by SYNC Beauty.

Encyclopedia

Retinol + Azelaic Acid

a pairing of a vitamin A derivative that accelerates cell turnover with a dicarboxylic acid that calms redness, targets pigment, and unclogs pores. Together they are often used to address...

Retinol + Azelaic Acid

a pairing of a vitamin A derivative that accelerates cell turnover with a dicarboxylic acid that calms redness, targets pigment, and unclogs pores. Together they are often used to address...

Retinol + Benzoyl Peroxide

a pairing of a vitamin A derivative with benzoyl peroxide, an ingredient commonly used to target acne-causing bacteria. The two are sometimes used in blemish routines, but benzoyl peroxide can...

Retinol + Benzoyl Peroxide

a pairing of a vitamin A derivative with benzoyl peroxide, an ingredient commonly used to target acne-causing bacteria. The two are sometimes used in blemish routines, but benzoyl peroxide can...

Retinol + BHA

a combination of a renewing vitamin A derivative with a beta hydroxy acid, most commonly salicylic acid, an oil-soluble exfoliant that can penetrate pores. It is often considered in routines...

Retinol + BHA

a combination of a renewing vitamin A derivative with a beta hydroxy acid, most commonly salicylic acid, an oil-soluble exfoliant that can penetrate pores. It is often considered in routines...

Retinol + AHA

a pairing of a renewing vitamin A derivative with alpha hydroxy acids such as glycolic or lactic acid, which exfoliate the skin's surface. Because both increase turnover and can be...

Retinol + AHA

a pairing of a renewing vitamin A derivative with alpha hydroxy acids such as glycolic or lactic acid, which exfoliate the skin's surface. Because both increase turnover and can be...

Retinol + Vitamin C

a combination of a vitamin A derivative used mainly at night with vitamin C, an antioxidant often used in the morning to brighten and help defend against environmental stress. Because...

Retinol + Vitamin C

a combination of a vitamin A derivative used mainly at night with vitamin C, an antioxidant often used in the morning to brighten and help defend against environmental stress. Because...

Retinol + Peptides

a pairing of a vitamin A derivative that supports cell turnover with peptides, short chains of amino acids that signal skin to support processes like collagen production. The two are...

Retinol + Peptides

a pairing of a vitamin A derivative that supports cell turnover with peptides, short chains of amino acids that signal skin to support processes like collagen production. The two are...