Phenylalanine
What Phenylalanine is & what it does
Phenylalanine is an essential amino acid used in cosmetics as a skin-conditioning and humectant agent. In skincare and sunscreen formulas it can help support the skin's moisture balance and is sometimes included as part of amino acid complexes that condition the skin surface. As a small water-soluble molecule, it is a common, well-tolerated building block found naturally in proteins.
Is Phenylalanine safe?
Phenylalanine is an essential amino acid found naturally in the body and in dietary proteins, and it is generally considered well tolerated when used topically in cosmetics. As a skin-conditioning ingredient it is used at low levels. If you have a specific medical condition, consult a qualified professional about products you use.
What does Phenylalanine do in skincare?
In skincare, phenylalanine acts as a skin-conditioning agent and humectant, helping support the skin's surface moisture. It is often part of amino acid blends that condition and smooth the skin. It does not provide UV protection on its own.
Is Phenylalanine vegan?
Cosmetic phenylalanine is typically produced by fermentation or synthesis, which can make it suitable for vegan products. Because sourcing can vary, check the product's vegan labeling if that is important to you.
Sunscreens with Phenylalanine
We rate 36 sunscreens that contain it, showing the top 10 by overall score:
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Sungboon Editor Green Tomato Pore Blurring Suncream
92/100
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Maruderm SPF 50+ Anti Blemish Sun Cream
91/100
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Maruderm SPF 50+ Pink Tone-up Sun Cream
91/100
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Maruderm SPF 50+ Moisturising Sun Cream
91/100
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Maru.derm Vitamin C Sun Cream
91/100
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Maruderm Maruderm SPF 50+ Anti-blemish Sunscreen Spray
91/100
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JM Solution Double Shield Sun Cream
88/100
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Kiehl’s Ultra Light Daily Uv Defense Spf 50 Pa+++
87/100
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Azio Beauty Age Defy Tinted SPF Perfector
87/100
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Maruderm SPF 30+ Nemlendirici Ve Koruyucu Sprey Güneş Kremi
87/100