Threonine
What Threonine is & what it does
An amino acid humectant and conditioning agent that hydrates and helps keep skin smooth. It is gentle and skin-compatible.
What does Threonine do in skincare?
Threonine is an amino acid that acts as a skin and hair conditioning agent in cosmetic formulas. As one of the building blocks of proteins, it can help support a smooth, conditioned feel and is sometimes part of amino-acid blends used for hydration. It is typically present at low levels in moisturizers and treatment products.
Is Threonine safe?
Threonine is a naturally occurring amino acid that is generally considered safe and well tolerated at the levels used in cosmetics. It is a normal component of skin and protein, and it is not associated with significant irritation for most people. Patch testing remains sensible when introducing any new product.
Is Threonine vegan?
The threonine used in cosmetics is often produced by fermentation or synthesis, in which case it can be vegan. However, amino acids can also be sourced from animal proteins, so vegan status depends on the manufacturer. Check with the brand if vegan sourcing is important to you.
Sunscreens with Threonine
We rate 47 sunscreens that contain it, showing the top 10 by overall score:
-
Isana Denní Fluid Anti-UV SPF 50
94/100
-
Sungboon Editor Green Tomato Pore Blurring Suncream
92/100
-
Maruderm SPF 50+ Anti Blemish Sun Cream
91/100
-
Maruderm SPF 50+ Pink Tone-up Sun Cream
91/100
-
Maruderm SPF 50+ Moisturising Sun Cream
91/100
-
Maru.derm Vitamin C Sun Cream
91/100
-
Pestlo Safe Recipe Sun Essence SPF 50+ Pa++++(2022 Renewal)
91/100
-
Maruderm Maruderm SPF 50+ Anti-blemish Sunscreen Spray
91/100
-
JM Solution Double Shield Sun Cream
88/100
-
Azio Beauty Age Defy Tinted SPF Perfector
87/100