Hylocereus costaricensis (Dragon Fruit) Extract is derived from the flesh and peel of the red‑fleshed dragon fruit cactus, a rich source of betalains, phenolic compounds, flavonoids, and vitamin C, which contribute robust antioxidant and anti‑inflammatory activities that can be leveraged in topical cosmetic formulations. These bioactive constituents scavenge reactive oxygen species (ROS) and help limit oxidative damage to skin macromolecules such as DNA, lipids, and proteins, which is a root cause of photoaging, loss of elasticity, and pigmentation irregularities. Studies on dragon fruit species have demonstrated significant antioxidant capacity attributable to these phytochemicals, and similar profiles are expected from Hylocereus costaricensis extracts, supporting claims of protection against environmental stressors, improved skin resiliency, and enhanced radiance. Dragon fruit extracts also contain hydrophilic polysaccharides and small molecules that can support hydrophilic balance and mild moisture retention at the epidermal surface.

In addition to antioxidative and calming benefits for skin, dragon fruit extract’s phytochemicals—particularly betalains—have shown potential antimicrobial activity, which can be beneficial in formulations aimed at maintaining a balanced skin microbiome and mitigating mild microbial imbalances linked to acne‑related conditions. While most scientific evidence focuses on skin applications, the same antioxidant and soothing properties support gentle scalp care in hair products designed for sensitive or environmentally stressed skin. In haircare, dragon fruit extract can be incorporated into serums, leave‑on conditioners, or scalp tonics to help protect scalp tissues from oxidative stress and support a healthier follicular environment, though evidence specific to hair fiber repair is limited.