Hayflower Extract

Hayflower extract is a botanical mixture (commonly derived from meadow grasses/herbs) used for soothing/fragrance marketing at low concentrations, but it can contain multiple plant allergens (e.g., sesquiterpene lactones, phenolics) that are well-represented in patch-test datasets for allergic contact dermatitis. In patients with eczema or compromised barriers, these complex extracts have a clinically meaningful risk of both stinging/irritant reactions and delayed sensitization, especially when layered with other actives. Given the variability in composition and the non-essential nature of the ingredient, I score it as a notable sensitization-prone botanical requiring caution. Safety Notes: In commercial skincare, hayflower extract (often listed as Hayflower Extract/Heublumenextrakt, typically a glycolic or glycerinic extract) is commonly used at very low levels (~0.01–0.1%) in leave-on creams/lotions and soothing products primarily for marketing and mild sensorial/skin-feel support. Mid-range use (~0.2–2%) appears in botanical-heavy “alpine/herbal” moisturizers and body care. The upper end in OTC consumer products is observed in specialty spa-style body balms, massage creams, and concentrated herbal gels where supplier-recommended maxima and skin comfort typically cap practical use around ~5% (higher levels are uncommon due to odor/color load and irritation/sensitization risk from complex botanical constituents).