Frequently Asked Questions


The most important thing you can do is to protect yourself from the sun. Apply SPF 30 or above sunscreen prior to going out in the sun. Re-apply every two hours. Additionally, optimizing your skin microbiome can drastically protect your skin and improve your skin age. You can do this through a change in diet and picking the appropriate topical skincare items to apply that are right for your particular skin microbiome type. You can get this info by using our Skin Mircobiome Discovery Kit.

"Bad" bacteria include those that are commonly associated with skin issues such as, acne, rosacea, clogged pores, and breakouts. "Bad" bacteria can overgrow the "good" bacteria and cause these and several other conditions. Note that we do not test for nor do we do provide care for bacteria that cause active skin infections. If you are concerned about an infection, please seek medical attention from your healthcare provider immediately.

Your skin microbiome type changes at least twice a year. However, changes can happen more frequently due to a variety of factors. If you are going through a stressful life event, you change your diet, you move to a new location, or you have new members of your household (people or pets!), your skin microbial diversity can fluctuate. Therefore, we recommend testing 2-4 times per year.

Microbiome friendly products help nourish your "good" bacteria at the expense of your "bad" bacteria. This helps keep your skin healthy, clean and reslient.


Yes! Parallel’s phage serums are safe to use with other products. In fact, phages are known to augment the effects of several active skincare agents, such as Vitamin C, Retinol, and Niacinamide.

However, we recommend to not concurrently apply our phage serums with benzoyl peroxide, tea tree oil, colloidal silver, or denatured alcohol. These products are known to deactivate phages. If you are unsure about the compatibility of your product, please write to us at

Yes, absolutley! Phages have received GRAS status from the FDA, meaning they are "generally regarded as safe." In fact, on average, two million phages pass through your body every day! Phages do not cause disease in humans, and they only have activity against the specific strain of bacteria that they match.

We offer three products that will empower you to live authentically in your best skin: a Holy Calming Cleanser, a Skin Barrier Silk Cream, and a Active Phage Serum that specifically targets the bad bacteria on your skin, which can make you prone to breakouts, blemishes, dryness, and advanced skin aging.

We also offer sessions with Parallel doctors and clinicans, providing care and personalized prescriptions that can augment your skin health regimen.

Order our Skin Microbiome Discovery Kit and send in your test swabs! We will send you a comprehensive skin health report that includes important information about your microbiome, such as types of bacteria present and skin age.

Shipping and Returns

Our return policy is simple. We offer a 30-day money back guarantee on your first order exclusing the cost of skin testing. Please email us at with your order number and request.

We expect to start shipping in 4-8 weeks depending on product availability. If we experience any delays, you will be promptly notified.

We currently ship our retail products to all 50 U.S. states.