Helianthus annuus (Sunflower) Extract refers to solvent-derived fractions obtained from sunflower tissues (typically seed, flower/receptacle, or sprout). Depending on plant part and extraction medium, the extract is enriched in linoleic-acid–bearing lipids, tocopherols (notably α-tocopherol), phytosterols, phenolic acids (e.g., chlorogenic acid), and/or polysaccharides. In skincare, these classes collectively deliver antioxidant capacity (ROS quenching and lipid peroxidation inhibition), help maintain stratum-corneum organization, and can temper subclinical inflammation triggered by pollution and UV exposure. Sunflower seed oil and sunflower-derived fractions have shown favorable effects on barrier proxy endpoints (e.g., TEWL reduction and hydration increase) in clinical and mechanistic literature, supporting their role as barrier-supporting emollients or as aqueous/anhydrous antioxidant boosters in serums, moisturizers, after-sun, and daily SPF formats. Formulators often use sunflower extracts to stabilize oxidative-sensitive actives, to augment photoprotection via radical interception, or to improve sensory with a light, quick-absorbing emollient phase.

In hair/scalp care, sunflower extracts function primarily as antioxidants and conditioning aids. Phenolic and tocopherol-rich fractions mitigate UV-initiated oxidative damage to hair proteins and lipids — mechanisms linked to fiber brittleness, color fade, and dullness — while lipid components contribute slip and reduce static, improving combability. Sunflower polysaccharide extracts have also been investigated for anti-UV benefits at the skin surface, suggesting potential utility in scalp serums and leave-on treatments designed for photo-exposed hair and scalp. Typical applications include color-protection shampoos/conditioners, leave-in sprays, scalp-care serums, and mask treatments where formulators want oxidative defense without heavy build-up.