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Ingredient guide
brassicyl isoleucinate esylate
In short
An amino‑acid‑derived lipid designed to mimic the skin’s natural barrier structure. Early research suggests it helps skin hold moisture more effectively.
Reviewed against published evidence · editorially independent · no brand pays for placement
Works for
Barrier · Hydration
Skin type
Sensitive · Dry
Best used
Anytime
What it is
Amino-acid-derived lipid that forms lamellar structures resembling the stratum corneum intercellular matrix. Designed to reinforce barrier architecture. Early studies suggest improved moisture retention in barrier-compromised skin.
Also found as
Related
Where to find it
Paula's Choice Barrier Repair Advanced Moisturizer
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Common questions
It supports barrier structure by forming lamellar layers similar to those in the outer skin, helping skin feel more comfortable and moisturised.
Yes. Its barrier‑supporting nature makes it a good match for dryness or easily disrupted skin.
Evidence is still emerging, but early data supports improvements in moisture retention.
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Personal guidance only · For clinical concerns, see a dermatologist.