Meet the Founder
Rachel Oborny
Cosmetic chemist / Formulator
Rachel Oborny spent over five years as a cosmetic chemist and formulator working at CDMOs (contract development and manufacturing organizations) where she developed anti-aging skincare, sunscreens, acne treatments, and various cosmetic products for many of the industry's most recognized brands.
Her expertise spans the full spectrum of skincare science: from anti-aging retinoids to vitamin C products, sunscreen chemistry, and beyond. She brings the same precision to every RSKU product that she applied in professional laboratories.
In 2019, Rachel's formulation work earned her the prestigious In-Cosmetics Formulation Challenge award in New York City, competing with her team directly against top global brands. That recognition affirmed what she already knew: that the best skincare isn't created by faceless brands—it's created by individuals with a passion for formulation.
RSKU is the brand she built for herself and for every person who wants to feel more confident in their skin.