What Is Galeopsis Tetrahit Flower/Leaf/Stem Extract?
Galeopsis tetrahit, sometimes called common hemp nettle, is a flowering herb native to Europe and parts of Asia. The extract used in cosmetics comes from its aerial parts—the blossoms, leaves and stems—harvested during the plant’s blooming season. These parts are rich in polyphenols, flavonoids and phenolic acids, molecules known for their ability to neutralize free radicals.
The plant has a long history in folk skin applications where fresh leaves were pressed onto minor irritations. Modern formulators took note of its antioxidant profile in the early 2000s as the industry searched for botanical alternatives to synthetic preservatives. To obtain the extract, the dried plant material is steeped in a mix of water and gentle solvents such as glycerin or propylene glycol, then filtered and concentrated under low heat. This method preserves heat-sensitive antioxidants while removing plant fibers and allergens.
Today you will most often spot Galeopsis tetrahit flower/leaf/stem extract in anti-aging serums, daily moisturizers, soothing sheet masks, eye creams, after-sun gels and protective daytime lotions aimed at city dwellers exposed to pollution.
Galeopsis Tetrahit Flower/Leaf/Stem Extract’s Cosmetic Benefits/Uses
This botanical ingredient is prized for one main reason: its antioxidant activity. By scavenging free radicals produced by UV light and environmental stress, it helps slow the look of premature aging, supports the stability of delicate oils and pigments in a formula and can reduce the need for higher levels of synthetic preservatives. Regular use in a finished product may translate to a brighter, more resilient complexion that feels protected against daily aggressors.
Who Can Use Galeopsis Tetrahit Flower/Leaf/Stem ExtractThis extract is generally suitable for all skin types. Its lightweight water-based profile means it will not feel greasy on oily or acne-prone complexions while the soothing antioxidants can comfort normal, dry and sensitive skin. Those with extremely reactive or compromised skin should still proceed with care in case any botanical trace compounds trigger a flare-up.
Because the ingredient comes from a plant and no animal derivatives are involved in its harvest or processing, products featuring Galeopsis tetrahit flower/leaf/stem extract are considered vegan and vegetarian friendly.
No studies have flagged specific concerns for pregnant or breastfeeding women when the extract is used topically and in the low levels found in cosmetics. That said this is not medical advice and anyone expecting or nursing should run new skincare products past a doctor to be on the safe side.
The extract is not known to cause photosensitivity. In fact its antioxidant content can help guard skin from the effects of daylight and pollution, though it is not a substitute for sunscreen.
Potential Side Effects/Adverse Reactions
Responses to topical Galeopsis tetrahit flower/leaf/stem extract vary from person to person. The points below outline potential side effects that could occur, but they are uncommon when the ingredient is used correctly in a well-formulated product.
- Skin irritation such as redness, burning or stinging on very sensitive skin
- Allergic contact dermatitis in individuals allergic to plants in the mint family (Lamiaceae)
- Transient itching or tingling if the formula contains a high concentration of the extract
- Rare photosensitive rash if impurities from the plant remain after extraction
- Heightened irritation when layered with products high in alcohol or strong exfoliating acids
If you experience any of these reactions discontinue use and seek guidance from a healthcare professional or dermatologist.
Comedogenic Rating
Rating: 0 / 5
Galeopsis tetrahit flower/leaf/stem extract is a water-soluble antioxidant with virtually no oils or waxy residues that could lodge in pores. Because it is typically used at low concentrations to boost antioxidant protection rather than for emolliency, it does not form an occlusive film on the skin. For these reasons it earns a solid 0 on the comedogenic scale.
Suitable for acne-prone or breakout-prone skin.
Keep in mind that the finished product’s overall formula is what ultimately determines pore-clogging potential, so a heavy cream containing this extract could still trigger congestion if other rich ingredients are present.
Summary
Galeopsis tetrahit flower/leaf/stem extract serves mainly as an antioxidant that helps neutralize free radicals, supports skin resilience against pollution and daylight exposure and stabilizes delicate ingredients in a formula. It achieves these effects thanks to its natural mix of polyphenols, flavonoids and phenolic acids.
The extract is not yet a mainstream star like vitamin C or green tea, but interest is growing among clean beauty brands looking for gentle plant actives that double as preservative boosters.
Safety data so far look reassuring, with low irritation potential and a non-comedogenic profile. As with any new skincare ingredient it is wise to patch test a small area first, especially if you have sensitive or reactive skin.