We believe that modern skincare must be revolutionized to achieve optimal skin health. And we believe the answer is in the wild, natural world, which includes the surface of your skin.

At Ellis Day Skin Science, we pioneer natural phage-based products that balance the microbiome by eradicating bacteria associated with skin problems and enabling good bacteria to flourish. This natural process addresses skin issues including blemishes and breakouts, redness, inflammation, and dryness.

We use cutting-edge science to leverage nature, creating products that are just as kind and conscientious as they are effective, so that all can feel empowered with balanced, clear, radiant, and resilient skin.


Our team is women led but diverse. We are all passionate about skin-native ingredients and making products that have science-backed claims to help you have the healthiest skin in the safest, most natural way possible.

With the innovation now possible with phage research and technology, we realize the potential to change the world: phage science can save lives, literally. There are vast use cases for phage, but we chose skincare because we believe it has the potential to impact the greatest number of people and change their lives on a daily basis. Everyday we all get up in the morning and look in the mirror. And often, what we see in the mirror affects how we feel about ourselves, about the day, about the world. We thought, if we can create a product that keeps the microbiome balanced, enabling healthy, clear, and resilient skin, then we can play a part in making a person’s life easier, less stressful, and, ultimately, more joyful.

Carol Christopher, PhD


"I like to do high-altitude trekking, and had the 'small world' experience of running into one of our investors near Mount Everest Base Camp in Nepal!"

Kimberly Abbi

Director of Digital Marketing

"I am a very creative person. I previously owned a celebrity rhinestone and jewelry company in NYC. ”

Ann Deren-Lewis

VP of Commercialization

"When not working, you will find me out running on our glorious trails...or chasing bears out of my pool!"

Laura Marinelli, PhD

Scientific Advisor

"My husband and I met in graduate school and got married in the chapel on the university campus, so some of our wedding photos were taken in the lab where I earned my Ph.D."

Vania Portilla

Creative Director

"I'm a multi-dimensional creative from the Miami area and I love everything that involves personal & spiritual development! Hot yoga is one of my favorite ways to stay active."

Jada Andrade

Social Media Intern

"Not only do I have a passion for skincare, but a passion for real estate"

Amanda Camos

Videographer & Social Media Content

"I’m a dancer and training to be a radio city Rockette."

Munira Masalawala

Business Analyst, Ignite Solutions

"I have lived and worked in Dubai, Mumbai, London and Pune. I enjoy the simple things in life. Good food and warm smiles make me happy."

Ashish Thigle

Software Development Engineer, Ignite Solutions

"I love learning new languages, baking and all-things-tech!"

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