Carya Ovata Bark Extract: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 24, 2025
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All information on this page is verified using publicly available nomenclature standards and reference materials from The Personal Care Products Council (PCPC) and the European Commission's CosIng database. Our analyses are based on technical data from these sources to ensure accuracy and reliability.

What Is Carya Ovata Bark Extract?

Carya Ovata Bark Extract is a plant derived ingredient taken from the bark of the shagbark hickory tree, a tall hardwood native to North America. The bark is naturally rich in polyphenols, tannins, flavonoids, simple sugars and trace minerals, elements that help protect the tree from environmental stress. Indigenous peoples once steeped the bark in water for topical washes, and its calming qualities later caught the attention of modern formulators looking for gentle botanical alternatives to synthetic skin conditioners.

To produce the extract, sustainably harvested bark is cleaned, dried and ground into a coarse powder. The powder is then soaked in a solvent such as purified water, glycerin or a mix of both. Low heat and time draw the beneficial molecules into solution, after which the mixture is filtered, concentrated and standardized to ensure batch-to-batch consistency before it is added to cosmetic bases.

Today you will most often find Carya Ovata Bark Extract in moisturizers, soothing lotions, face masks, aftershave balms, eye creams and anti-aging serums where it supports a soft supple skin feel.

Carya Ovata Bark Extract’s Cosmetic Benefits/Uses

This botanical is prized for the following primary role in skin care formulas.

Skin conditioning: The natural sugars and polyphenols in Carya Ovata Bark Extract help hold water on the skin surface, boosting hydration and leaving the complexion touchably smooth. Its tannins can also lend a mild astringent effect that refines skin texture while the antioxidant flavonoids help shield against everyday environmental stress, all of which contribute to a healthier more comfortable skin barrier.

Who Can Use Carya Ovata Bark Extract

Carya Ovata Bark Extract is gentle enough for most skin types. Dry and sensitive complexions often appreciate its moisture holding sugars and soothing antioxidants while normal and combination skin benefit from the balanced hydration boost. Oily skin can also use it because the light astringent tannins help keep excess surface sebum in check without stripping. The only group that may need extra caution is anyone with a known tree nut allergy since hickory belongs to the nut family and trace proteins could be present.

Because the extract is entirely plant derived and no animal by-products are used during processing it is suitable for both vegans and vegetarians.

Current research shows no specific risks for pregnant or breastfeeding women when the ingredient is used topically at the low amounts found in cosmetics. This is not medical advice so anyone who is expecting or nursing should run new skincare items past a qualified healthcare provider before adding them to a routine.

The extract is not known to increase photosensitivity and can be worn day or night without special sun precautions beyond your usual sunscreen.

Potential Side Effects/Adverse Reactions

Responses to any skincare ingredient vary from person to person. The points below outline potential side effects from topical use of Carya Ovata Bark Extract, but most people will not experience them when the product is formulated and applied as intended.

  • Skin irritation such as mild stinging or burning, especially on compromised or freshly exfoliated skin
  • Redness or itching in those with very sensitive skin or barrier disorders
  • Allergic contact dermatitis in individuals sensitized to hickory or other tree nuts
  • Temporary dryness or tightness if layered with multiple other astringent or exfoliating products
  • Light surface discoloration on fair skin due to natural tannins, usually temporary and washable

If any of these reactions occur stop use immediately and seek advice from a healthcare professional.

Comedogenic Rating

Rating: 1 / 5  Carya Ovata Bark Extract is mainly composed of water-soluble sugars, polyphenols and trace minerals with virtually no heavy oils or waxes that could clog pores. Its light molecular profile lets it rinse away cleanly and the mild astringent tannins can even help reduce surface oil. Because of this it is generally considered friendly for those prone to acne or breakouts.

While unlikely to cause congestion on its own, the final pore-clogging potential of a product also depends on the entire formula, so always check the overall ingredient list if you are highly breakout-sensitive.

Summary

Carya Ovata Bark Extract acts as a skin conditioner that hydrates, soothes and offers a touch of antioxidant protection. Its natural sugars attract moisture, tannins give a subtle tightening feel and flavonoids help neutralize everyday oxidative stress, all of which support a comfortable resilient skin barrier.

The extract is still a bit of a niche player, more common in clean beauty and indie formulations than on big-box shelves, yet those who have tried it appreciate its gentle performance.

Topical use is considered low risk for most people with the main caution being possible nut-related allergies. As with any new cosmetic ingredient it is wise to perform a quick patch test to confirm personal compatibility before full-face application.

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