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Glycine

Glycine is a non-essential amino acid, a fundamental building block of proteins, naturally present in the skin. It acts as a humectant, drawing moisture into the skin to keep it hydrated. Glycine also plays a role in collagen synthesis, contributing to skin elasticity and firmness.

Amino acid
BenefitGood 2.5 / 4
Hydration i3 / 4

Whether the ingredient helps increase the skin’s water content — humectants that attract water, ingredients that reduce water loss, or ones that make skin feel less dry.

Anti aging i2.5 / 4

Whether it can help visible signs of aging — fine lines, wrinkles, loss of firmness, or photoaging.

Barrier support i2 / 4

Whether it supports the skin barrier — restoring lipids, reducing water loss, aiding barrier repair, or strengthening the skin’s protective function.

Texture i1.5 / 4

Whether it can improve smoothness and surface texture — roughness, flaking, clogged pores, or unevenness. Exfoliating acids, retinoids, and smoothing moisturizers may score here.

Soothing i1 / 4

Whether it can calm the skin — linked to less redness, irritation, discomfort, or visible reactivity.

RiskVery low 0 / 4

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

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Products with Glycine

Protini Powerpeptide Resurf Serum
Drunk Elephant
Protini Powerpeptide Resurf Serum
4.7/ 544/27/6
Rice Lipids + Ectoin Microemulsion
The Ordinary
Rice Lipids + Ectoin Microemulsion
4.7/ 527/13/5
UreaRepair PLUS 5% Urea Hand Cream
Eucerin
UreaRepair PLUS 5% Urea Hand Cream
4.6/ 512/11/4
Age Perfect Serum Le Duo
L'Oréal Paris
Age Perfect Serum Le Duo
4.6/ 526/25/7

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Frequently asked questions

What is Glycine?
Glycine is the smallest and simplest amino acid, which means it's a basic component of proteins. It's naturally produced by the body and is involved in many biological functions, including those related to skin health.
How does Glycine benefit the skin?
In skincare, Glycine helps to hydrate the skin by acting as a humectant, attracting and holding moisture. It is also a key component of collagen, making it important for maintaining skin's structure, elasticity, and firmness.