Epilobium Angustifolium Leaf 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 27, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Epilobium Angustifolium Leaf Extract?

Epilobium Angustifolium Leaf Extract comes from the leaves of the rose bay or fireweed plant, a hardy wildflower that thrives across the Northern Hemisphere. The leaves are naturally rich in soothing polyphenols such as oenothein B along with flavonoids and gentle tannins, all of which give the extract its calming feel on skin.

Fireweed tea has been used for generations as a folk remedy for irritated skin. As interest in plant based care grew in the late 20th century cosmetic chemists began studying its leaves more closely. They discovered that the same compounds cherished in traditional use can help comfort modern skin concerns, so formulators started adding the extract to creams and lotions aimed at reducing visible redness.

To make the ingredient, fresh or dried leaves are cleaned, crushed then steeped in a skin friendly solvent such as water or glycerin. The liquid is filtered to remove plant solids and the resulting extract is concentrated to a consistent strength. The finished material is an easy to dose liquid or powder that blends well with oils, gels or emulsions.

You will often spot Epilobium Angustifolium Leaf Extract in soothing masks, oil control toners, after shave balms, anti aging lotions, lightweight moisturizers and spot treatments formulated for blemish prone skin.

Epilobium Angustifolium Leaf Extract’s Cosmetic Benefits/Uses

This botanical is prized for one main role in skin care formulations.

Skin conditioning: The blend of polyphenols and flavonoids helps calm the look of redness while supporting a soft hydrated feel. By comforting skin and lightly balancing oil it leaves the complexion looking smoother and more even which makes it a popular pick for daily moisturizers, post shave products and masks aimed at stressed or reactive skin.

Who Can Use Epilobium Angustifolium Leaf Extract

This leaf extract is gentle enough for most skin types including dry, normal, combination and oily. Its lightweight feel and calming nature make it especially appealing for sensitive or redness-prone complexions that need soothing without heavy oils. Those with very dry skin may still want to pair it with richer moisturizers since the extract itself is not highly occlusive but otherwise it rarely causes issues across the board.

The ingredient is plant derived so it is suitable for vegans and vegetarians. No animal by-products or animal testing are required to produce the raw extract, provided the finished brand also follows cruelty-free standards.

Current research does not show any specific risk for pregnant or breastfeeding women when the extract is used topically at the concentrations found in cosmetics. Still, this is not medical advice and anyone who is pregnant or nursing should review all skincare products with a qualified healthcare professional to be safe.

Epilobium Angustifolium Leaf Extract is not known to increase photosensitivity, so it will not make skin more prone to sunburn. Normal daily sun protection is still encouraged as part of a balanced routine.

Potential Side Effects/Adverse Reactions

Side effects from topical Epilobium Angustifolium Leaf Extract can vary from person to person. The following points list potential reactions, but they are uncommon when the ingredient is correctly formulated in a product.

  • Mild redness or stinging
  • Itchiness in very sensitive individuals
  • Contact dermatitis in those with a specific allergy to fireweed or related plants
  • Eye irritation if the product is accidentally rubbed into the eyes

If any irritation, swelling or discomfort develops discontinue use and consult a healthcare professional or dermatologist

Comedogenic Rating

Rating: 0

Epilobium Angustifolium Leaf Extract is almost always supplied in a water or glycerin base with minimal lipids so it has no tendency to block pores. The calming polyphenols sit lightly on skin and rinse away easily, which keeps residue from building up inside follicles.

Suitable for acne-prone and breakout-prone skin.

Keep in mind that while the extract itself is non-comedogenic the overall formula still matters. Heavy oils, butters or waxes used alongside it could raise a product’s pore-clogging potential.

Summary

Epilobium Angustifolium Leaf Extract is chiefly a skin-conditioning agent that softens, soothes and lightly balances oil. Its polyphenols and flavonoids quell the look of redness while supporting a smoother feel, which is why you will spot it in calming creams, oil control toners and post shave balms.

Popularity sits in the middle of the plant-based crowd: not yet a household name like aloe but gaining steady attention as more brands look for gentle botanicals that suit reactive or oily skin.

Topical use is considered very safe with low risk of irritation or clogged pores. Even so it is smart to patch test any new product to be sure your skin agrees with the full formula.

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