Balancing Phage Serum
Balancing Phage Serum
Balancing Phage Serum
Balancing Phage Serum
Balancing Phage Serum
Balancing Phage Serum
Balancing Phage Serum
Balancing Phage Serum
Balancing Phage Serum
Balancing Phage Serum
Balancing Phage Serum
Balancing Phage Serum
Balancing Phage Serum
Balancing Phage Serum
Balancing Phage Serum
Balancing Phage Serum

Balancing Phage Serum

What is it?
Balancing Phage Serum is the first skincare product clinically proven to reduce blemishes and breakouts, as well as redness and irritation by eradicating problem bacteria and enabling good bacteria to thrive.

What skin type is it for?
All Skin types

What does it do?
Use it consistently 1-2 times/day to see a reduction in breakouts and the associated redness and inflammation, as well as smoother skin texture. Ellis Day's unique skin-native antibacterial, phages, target and eradicate problem-causing bacteria and also enable the good bacteria to flourish, leaving you with healthy, balanced, clear skin.

Choose your delivery option:

Subscribe to balanced, healthy, resilient skin
Subscribe and receive automatic deliveries of Balancing Phage Serum. Prepay for maximum savings, or choose monthly or every-6-weeks frequency. Plans auto-renew. Always free shipping with each order.

Add To Cart

One bottle lasts 4-5 weeks based on 1-2 applications per day.
0.5 FL OZ / 15 ML per bottle


Cruelty Free, Paraben Free, Sulfate Free, Phthalate Free, Toxin Free, Vegan, Made Sustainably, Recyclable 



Water, glycerin, C. acnes phage blend, magnesium chloride, sodium chloride, acacia senegal gum, xanthan gum, propanediol, pentylene glycol, sodium levulinate, sodium anisate, phenethyl alcohol.


How to Use

Recommended step-by-step skincare routine (morning and/or night):

  1. Wash face with a gentle cleanser
  2. Apply 2-3 pumps of Balancing Phage Serum to clean, dry skin, covering the entire face
  3. Apply moisturizer and any additional products as you normally would

If toner is used, use only non-alcohol based-toner and apply after cleansing. Let dry and then apply Balancing Phage Serum. Follow with moisturizer as needed.

Important Note:
Do not use in combination with products containing benzoyl peroxide, tea tree oil, colloidal silver or where denatured alcohol is the main ingredient. (Unsure if your product is compatible? Please see our online FAQs or email us at Store in a cool, dry place. Avoid eyes.

What Our Customers are Saying about Our Balancing Phage Serum

Customer Reviews

Based on 60 reviews
Jess A
Game Changer

I struggled for years with acne after stopping the pill. I’m now in my forties and my acne had been worse than when I was in my teens; the last thing in the world I thought I’d be dealing with is wrinkles AND pimples. Fast forward to about year ago when I found this product. Almost immediately I noticed a significant improvement in my skin. I use this product and red light therapy daily, and haven’t had a pimple in months. Not to mention the customer service is PHENOMENAL. The level of responsiveness and personal service is unheard of these days. Highly recommend for so many reasons.

so far so good

Seems to be helping with active breakouts. Only been using 2 weeks so prob too soon to tell if it will have any effect on new spots. It is non-irritating to my rosacean skin and I very much appreciate the lack of fragrance.

L.Morgan Kelley
customer service

The absolute best considerate and informative customer service responses!! They really listen to and will respond to any and all questions/concerns!

Heather Amons

I wish I had this product years ago, I can't say nice enough things about it! My misbehaving skin has card down and is actually glowing!

Charisse Comart


Awesome product

I cannot imagine a world where I don’t have this product. Ellis Day has created something that is magical. It doesn’t irritate my skin at all. It’s done something that I hadn't thought was possible for my acne and I am incredibly thankful to the Ellis Day team. If you have struggled with acne, this is what you need.

Julie D.R.E.
Very happy

I wanted to wait at least one full cycle to review since my acne is hormonal. After a month and a half of use, I'm very happy with this product. While my skin is not 100% acne free (and I'd never expect one product to manage that), I am definitely having fewer breakouts, fewer clusters/patches of breakouts, and fewer cystic breakouts that linger for weeks. The breakouts I do get often come to a head more quickly as well. I knew I'd have to be extremely happy with this product to keep using based on the price but I'm now sure I'll be reordering. Going to try it on my back next because it's been so effective on my face!

Katie Blahnik
Amazing product

This is a wonderful serum! It goes on so smoothly and does not pill or easily come off like other products do. It has made a great difference in the texture of my skin and now I cannot do without it!

Penelope Oberhardt
My skin needed this.

I've been using the Balancing serum for the last three weeks. I am 41 with adult acne and my skin is sensitive. This has completely reduced inflammation and reduced breakouts. I highly recommend!!

Gabriela Keeton
Can’t go without it!

Firstly let me start by saying I LOVE the ladies at Ellis - the products they are creating are truly revolutionary (with solid science to back them) and a customer support that is the best I’ve had of ANY skin care line. I’ve been using the balancing phage since November and I absolutely love it. I recently went off birth control - the last time I did that it caused really bad hormonal acne - this time I started using the phase serum and I’ve had no issues with hormonal deep cystic acne like I use to. I basically haven’t had any mayor breakouts since I started using it! Which is still shocking to me. It’s such a beautiful primer for your skin - It feels like all my other products - retinoids, vitamin C, etc now apply so much smoother and effectively - it turns your skin into a perfect canvas for the rest of your skin care routine. Big fan!!! Won’t go without it.

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