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Active Ingredients

Tetrapeptide-21

Often labeled as: TEGO Pep 4-17

The collagen-boosting messenger peptide.

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Overall Safety Safe
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Pregnancy Safety Safe
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Comedogenic (0-5) 0 / 5
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Irritancy (0-5) 0 / 5

๐Ÿ”ฌ How It Actually Works

A cell-communicating peptide that mimics the breakdown products of the skin's extracellular matrix, tricking the skin into regenerating lost collagen and hyaluronic acid.

๐Ÿ’– Why your skin loves it

Reduces skin roughness, increases elasticity, and minimizes deep wrinkles.

๐Ÿ’ก Pro Tip

Highly effective even at very low concentrations.

โš–๏ธ Myth vs. Fact

The Myth

It works exactly like Retinol.

The Science

It boosts collagen without the cellular irritation or peeling associated with Vitamin A.