Sienna Ava

@sienna_av

Recipe development and formulation

United Kingdom

English, French, German

About me

Hi, I’m Sienna — a formulation specialist with 5 years of hands-on experience developing cosmetic and skincare products that perform. I’ve worked with indie brands, private label companies, and established beauty businesses, maintaining a strong focus on formulation integrity. If you have a product idea but lack the chemistry expertise, I provide structured guidance. All formulations are developed with ingredient safety, skin compatibility, and regulatory compliance in mind. I work with both water-based and anhydrous systems and follow EU, US, and international cosmetic standards. ... Read more

Skills