Personalized care and prescriptions

In collaboration with our dermatologists and scientific team, we craft a customized formulation for you that includes multiple prescription-strength ingredients, alongside key actives, that help support your skin health goals.

A bundled pack of 3, 4, or 5 refill inserts is available for those who have already experienced their first Custom Active Phage Serum and are looking to replenish their supply.

HSA/FSA Eligible

How refills work
As part of our commitment to sustainability, please note that the outer glass package, cap, and dispenser are meant to be re-used. Simply insert your new refill into your original packaging and recycle your old refill insert when done. 
About Parallel's Custom Active Phage Serums
Powered by Parallel’s unique, high-titer phage technology, we are proud to offer eight different targeted, custom active phage serums for eight different skin microbiome types. The right active phage serum can naturally roll back
your bad bacteria and enable good bacteria to flourish, supporting balance, clarity, and radiance. Dermatologist-approved, for healthy, youthful, more resilient skin.

Powered by Parallel’s unique, high-titer phage technology, we are proud to offer eight different targeted, custom active phage serums for eight different skin microbiome types. The right active phage serum can naturally roll back your bad bacteria and enable good bacteria to flourish, supporting balance, clarity, and radiance. Dermatologist-approved, for healthy, youthful, more resilient skin.

Which hero active phage serum should you choose? 
Type 1 – Phoenix
Type 2 – Orion
Type 3 – Cassiopeia
Type 4 – Cepheus
Type 5 – Hercules
Type 6 – Pegasus
Type 7 – Hydra
Type 8 – Delphinus

All of our targeted serums have been scientifically formulated for a specific skin microbiome type, containing a phage cocktail that combats specific problem strains of bacteria, synergistically combined with key ingredients that super boost your skin microbiome. Our various phage serums support eczema-prone and acne-prone skin, amongst other types of skin.

Your Custom Active Phage Serum
Conducting your Skin Discovery Test unlocks the hero active phage serum that is right for you. If you haven't yet taken your skin test, simply subscribe to Parallel's Skin Optimizing Protocol, which includes a free test in month 1; from there, you will automatically receive your Active Phage Serum every month. Ongoing testing is included every 6 months to inform the maintenance or change of your phage serum.

Start your Protocol for a discount
If you've taken the Skin Discovery Test already outside of the protocol, and are now ready to try your Active Phage Serum, simply start your Skin Optimizing Protocol today to access the highest cost savings. All protocols include a monthly supply of phage serum, free testing every 6 months, and access to 1:1 clinical guidance with Parallel's in-house physicians. After subscribing, you will receive your serum within 5 business days. All protocols can be easily canceled after three months. 

A note on Parallel's sustainable packaging and refills
As part of our commitment to sustainability, please note that the outer glass package, cap, and dispenser are meant to be re-used. When you receive your refill, simply recycle your old refill insert when done and keep all of the remaining main components 

30 mL