

Skin that gets plenty of hydrating serum can still feel tight by lunchtime, because water on its own evaporates unless a thin layer of oils and fats on the surface helps hold it in. Knowing whether your skin is short on oil, short on water or both tells you exactly what your moisturizer needs to do.
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What each one does, how it works and how to use it.

Ceramides are half the mortar holding your skin together, and running low is why skin turns tight and reactive. Here is how replacing them repairs a struggling barrier.
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Squalane is the stable version of an oil your skin already makes, and it suits dry, reactive and acne-prone skin without clogging pores. Here is the one-letter difference that matters on a label and where it belongs in your routine.
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Hyaluronic acid holds a thousand times its weight in water and plumps skin the same day. Here is how to apply it so it works, and why it sometimes backfires.
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Sodium hyaluronate is the salt form of hyaluronic acid, and usually the better choice. Here is why it is on the back of the bottle when the front says something else.
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Panthenol is vitamin B5 in a form your skin absorbs. It hydrates, calms irritation and supplies material for barrier repair, all at once. Here is why it makes everything else easier to use.
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Lactic acid exfoliates and hydrates at the same time, which makes it the AHA for dry and easily irritated skin. Here is how it compares to glycolic and how to use it.
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Ectoin holds water steady around your skin cells, so skin that reacts to wind, heat, flights and city air stays calm. Here is what the eczema trials found and how to use it.
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Vitamin E protects the fatty part of your skin barrier from sun and pollution damage, and it works best paired with vitamin C. Here is why that pairing matters, and why the research does not back putting it on a scar.
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Peptide-rich cream that firms, smooths, and restores elasticity to face and neck.

Hydrates deeply, calms irritation, brightens and restores balance.

Microneedling patches for deep hydration and plumping.

A warming lip formula that plumps through natural vasodilation, reduces lip lines, and deeply nourishes.

Restores skin elasticity and smoothness while replenishing hydration, ideal for stressed or dry body skin.

A soothing mask that deeply hydrates compromised skin, calms irritation, and helps repair barrier damage.

A gentle yet powerful serum that repairs, calms inflammation, and strengthens the skin barrier.

Two-step mist and probiotic serum duo that balances the microbiome, repairs the barrier, restores glow.

Paired set of Lipid Serum and Hyvia Crème to hydrate, repair, and strengthen the barrier.

A six-piece, TSA-safe Epicutis set for travel or trial, in convenient mini sizes.

Toner for acne, PIH, sun damage and reactive skin.

For dry, dehydrated, textured, barrier depleted or mature skin.

A lush cream cleanser that removes makeup, oil, and impurities without stripping skin.

Gently exfoliates and smooths rough skin for a softer, healthier-looking glow.

Soothing facial mist for reactive, inflamed, post-procedure, or dehydrated skin.

Hydrating toner that refreshes skin while restoring pH balance.

Hydrating toner that replenishes moisture, softens the skin, and supports a healthy skin barrier.

Rich cream that smooths texture, boosts firmness, and hydrates deeply for multiple aging concerns.

Adaptogen-powered serum that restores balance and improves redness, dullness, and uneven tone.

Clinically tested on menopausal skin to restore hydration, firmness, and luminosity.

Improves elasticity, hydrates and smooths crepey skin.

A silky, acne-safe cleansing oil that melts away makeup and impurities while supporting the barrier.

Lightweight souffle that detoxifies, smooths, and promotes collagen for radiant skin.

Enzyme body exfoliant that smooths rough texture and leaves skin soft and radiant.
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