Our Story


Shelley and Shanna teamed up in April of 2014 to found S4 Skincare. With Shelley's skincare expertise "Shanna has an amazing business background in art, technology and start-ups, which is exactly what my expertise, understanding the particulars of clients' skincare preferences and desires, needed." Shelley and Shanna's business know-how "We each brought something different to the table in terms of forming a partnership that could get Shelley's great products into the hands of more people." Shanna they set out on a mission to improve everyone's skin by providing healthy, accessible and environmentally conscious products.

"We believe that simply cleansing and nourishing your skin with the right products can help you look and feel refreshed, rejuvenated, bright-eyed, relaxed, and beautiful. We hope you will feel these things from your very first splash."


"It is important to us that our clients feel good and know that they are making a difference by choosing S4 Skincare."



  • Locating high-quality, healthy, natural and effective ingredients for our products.
  • Creating product formulas that are easy to use and make sense.
  • Striving to serve our community and have a commitment to giving back as we grow.
    • Volunteering for animal causes.
    • Sitting on panels and boards that promote women.
    • Donating a portion of our profits to support local and global causes.
  • Thriving on customer input and feedback.
  • Offering education and transparency across everything we develop.


The S4 Skincare headquarters are perched in the heart of San Francisco, surrounded by beautiful people who are eco-conscious, health-focused, awe-inspiring and tech savvy. We utilize our unique position to research and test products quickly, simply and efficiently in this close-knit urban environment.


The S in S4 stands for so much—Skincare, Shelley, Shanna, 4 core principles; Smart, Simple, Safe & Sustainable and so much more"Our love of the letter S never seems to end… special, sunshine, smiling, sweetness, splendid…" Shelley & Shanna .


The S4 products got their start in the professional skincare studio Shelley founded and ran for the 11 years prior to founding S4 Skincare. Shanna was a frequent client of Shelley's at her salon and became fascinated by the idea of bringing the beautiful products Shelley had developed to more people. Together they developed the idea for S4 over many months of brainstorming, planning and many glasses of wine."Our vision was to build our brand and products as an online business designed for the modern busy professional who want results without having to compromise their principles in terms of where the product ingredients come from and what they're made of." Shelley
"We are excited to see this vision come to life and hope you will feel the love and thought that has entered into every aspect of S4 Skincare." Shanna