Carpinus Tschonoskii Stem 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 Carpinus Tschonoskii Stem Extract?

Carpinus Tschonoskii Stem Extract comes from the stems of Carpinus tschonoskii, a hornbeam tree that belongs to the birch family. The extract is naturally rich in polyphenols, flavonoids and tannins, all of which are known for their protective and soothing properties on skin and hair. While the tree has long been valued in parts of East Asia for its sturdy wood, its stem was later studied for the antioxidant molecules locked inside. As laboratory methods improved cosmetic chemists began drawing out those compounds for skincare and haircare formulas.

To produce the extract growers harvest young stems, dry and grind them then soak the material in a solvent such as water or a mix of water and gentle alcohol. The liquid pulls out the helpful plant compounds, after which it is filtered and concentrated. The resulting extract is usually delivered to manufacturers in either a water-based solution or a dry powder.

You will most often spot Carpinus Tschonoskii Stem Extract in facial masks, toners, lightweight moisturizers, anti-aging serums, aftershave products and conditioners. It blends well with both water and oil phases, giving formulators flexibility when they want to add calming or protective benefits without heavy texture.

Carpinus Tschonoskii Stem Extract’s Cosmetic Benefits/Uses

This multitasking plant extract lends several useful properties to modern beauty products.

  • Antioxidant: Helps neutralize free radicals generated by sun exposure or pollution which can lead to dullness and premature wrinkles
  • Astringent: Provides a mild tightening effect that can reduce the look of enlarged pores and excess surface oil making skin appear smoother
  • Hair conditioning: Coats strands lightly to improve softness and manageability while adding a natural sheen without weighing hair down
  • Emollient: Supplies light surface moisture that leaves skin feeling supple and comfortable especially in leave-on lotions and creams

Who Can Use Carpinus Tschonoskii Stem Extract

Thanks to its light texture and gentle botanical profile Carpinus Tschonoskii Stem Extract is generally suitable for all skin types. Oily and combination skin may appreciate its mild astringent action that helps refine the look of pores and curb surface shine. Dry or mature skin can still benefit from its antioxidant and emollient properties as it adds a whisper of moisture without feeling greasy. Sensitive skin usually tolerates the extract well, though anyone with a known allergy to plants in the birch family should exercise caution.

The ingredient is plant derived and typically processed without animal by-products so it aligns with vegan and vegetarian lifestyles.

No specific warnings have been issued regarding the topical use of this extract during pregnancy or breastfeeding. That said this is not medical advice and anyone expecting or nursing should check with a healthcare professional before adding new products to a routine.

The extract does not make skin more reactive to sunlight and does not increase the risk of photosensitivity. It also plays nicely with most common skincare actives, making it easy to slot into day or night regimens.

Potential Side Effects/Adverse Reactions

Individual responses to Carpinus Tschonoskii Stem Extract can vary. The points below outline potential side effects but most people will not encounter them when the ingredient is formulated and used correctly.

  • Mild skin irritation such as redness or stinging, especially on very sensitive or compromised skin
  • Dry or tight feeling if used in high concentrations on already dehydrated skin
  • Allergic contact dermatitis in rare cases for individuals allergic to birch family plants
  • Temporary eye irritation if the product accidentally gets into the eyes

If any discomfort or adverse reaction occurs stop using the product and consult a qualified healthcare professional.

Comedogenic Rating

Rating: 1 / 5

Carpinus Tschonoskii Stem Extract is mostly made up of water-soluble antioxidants and tannins with very little oil or wax content, so it does not tend to block pores. The mild astringent nature can even help keep surface oil in check, which further reduces the chance of congestion.

That means the extract is generally considered safe for skin that is prone to acne or breakouts. If a product containing this ingredient does cause clogging it is more likely due to other richer components in the formula rather than the extract itself.

Comedogenicity can be influenced by concentration and the finished product’s overall texture, so lightweight gels or toners with the extract remain the best choice for those worried about pore blockage.

Summary

Carpinus Tschonoskii Stem Extract delivers antioxidant protection, mild pore-tightening astringency, light emollient softness and a soft conditioning touch for hair. Its polyphenols and flavonoids mop up free radicals while tannins provide the gentle tightening feel. The extract’s small molecular size lets it sit smoothly on skin without heaviness, offering a quick way to add comfort and protection in both skincare and haircare formulas.

Although not as famous as green tea or vitamin C it shows up in a growing number of masks, toners and leave-in conditioners aimed at users who want plant based benefits without extra weight.

Overall safety is high with only rare reports of irritation or allergy in those sensitive to birch family plants. As with any new cosmetic ingredient it is wise to patch test a product before regular use, just to stay on the safe side.

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