Humectant

Prunus Serotina Bark

INCI: PRUNUS SEROTINA BARK

Reviewed by Kate · Last updated 14 Aug 2026

A plant-derived skin conditioning agent that supports moisture retention and skin barrier function

Best For Skin Types

All, Dry, Sensitive

Addresses

Dryness, Hydration, Barrier repair

Usage Frequency

Daily

What Is Prunus Serotina Bark?

Prunus Serotina Bark is an extract derived from wild black cherry tree bark, a botanical ingredient used in skincare formulations. The bark contains compounds that function as humectants and skin conditioning agents, meaning they help the skin absorb and retain moisture.

In cosmetic products, this ingredient is typically incorporated into serums, moisturisers and treatments where its primary role is to support hydration and improve skin feel and texture.

How It Works

Prunus Serotina Bark extract functions as a humectant, a substance that attracts water molecules from the environment and deeper skin layers to the outer epidermis. This helps improve skin hydration and plumpness. Additionally, the ingredient conditions the skin surface, creating a smoother appearance and reducing dry patches.

The extract also contains compounds that may support the skin's natural moisture-retention mechanisms, though the exact mechanisms require further study.

Clinical Evidence & References

Published clinical evidence specifically evaluating Prunus Serotina Bark in skincare is limited. The ingredient is recognised in cosmetic formulation for its humectant and conditioning properties, but robust human studies documenting efficacy are sparse.

Much of the supporting information comes from traditional use and in vitro studies of plant compounds. For a clear understanding of its performance in your routine, observational use and patch testing remain the most practical approaches.

How to Use

Prunus Serotina Bark is best applied to damp skin, as this maximises its humectant effect—the moisture already present helps the ingredient draw additional water into the skin. Use it as part of a layered routine: apply after cleansing, then follow with an emollient moisturiser to seal in hydration. There are no standard restrictions on frequency, so daily use is typically appropriate unless you experience sensitivity.

Safety & Precautions

Generally well-tolerated in cosmetic formulations. As with any botanical extract, patch test first if you have sensitive skin or known sensitivities to plant-derived ingredients.

Frequently Asked Questions

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Part of a family

Prunus Serotina Bark is a variant of Prunus Serotina Fruit Extract, the form you will most often see on an ingredients list.

A plant extract with antioxidant properties, derived from sweet cherry fruit

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