Skin Encyclopedia

An evidence-based skincare reference by SYNC Beauty.

Encyclopedia

Peptide vs Retinol Actives

a comparison of two distinct categories of anti-aging ingredients, where peptides are short chains of amino acids that signal skin to support collagen and barrier function, while retinoids are vitamin...

Peptide vs Retinol Actives

a comparison of two distinct categories of anti-aging ingredients, where peptides are short chains of amino acids that signal skin to support collagen and barrier function, while retinoids are vitamin...

Retinoid Esters Overview

a category of gentler vitamin A derivatives in which retinol is bound to a fatty acid, including retinyl palmitate, retinyl acetate, and retinyl linoleate. These esters must be converted within...

Retinoid Esters Overview

a category of gentler vitamin A derivatives in which retinol is bound to a fatty acid, including retinyl palmitate, retinyl acetate, and retinyl linoleate. These esters must be converted within...

Caffeine in Skincare

a plant-derived compound used topically for its antioxidant properties and its temporary tightening and de-puffing effects, particularly around the eyes. It is a common ingredient in eye creams and firming...

Caffeine in Skincare

a plant-derived compound used topically for its antioxidant properties and its temporary tightening and de-puffing effects, particularly around the eyes. It is a common ingredient in eye creams and firming...

Squalane vs Plant Oils Overview

a comparison between squalane, a saturated and highly stable lightweight emollient, and plant oils, which are triglyceride-rich botanical oils with varied fatty acid profiles. Both soften and condition skin, but...

Squalane vs Plant Oils Overview

a comparison between squalane, a saturated and highly stable lightweight emollient, and plant oils, which are triglyceride-rich botanical oils with varied fatty acid profiles. Both soften and condition skin, but...

Dimethicone and Silicones

a family of synthetic polymers used in skincare to improve texture, spreadability, and skin feel while forming a breathable, flexible film on the surface. Dimethicone is one of the most...

Dimethicone and Silicones

a family of synthetic polymers used in skincare to improve texture, spreadability, and skin feel while forming a breathable, flexible film on the surface. Dimethicone is one of the most...

Mineral Oil and Petrolatum

highly refined petroleum-derived ingredients used in skincare primarily as occlusives that form a protective layer to slow water loss from the skin. Mineral oil is a light liquid emollient, while...

Mineral Oil and Petrolatum

highly refined petroleum-derived ingredients used in skincare primarily as occlusives that form a protective layer to slow water loss from the skin. Mineral oil is a light liquid emollient, while...