Hydrating Phage Serum
Hydrating Phage Serum
Hydrating Phage Serum
Hydrating Phage Serum
Hydrating Phage Serum
Hydrating Phage Serum

Hydrating Phage Serum

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Our new 2-in-1 Hydrating Phage Serum contains the same blend of phages in our original serum, PLUS the skincare superstar hyaluronic acid to prevent moisture loss and keep your skin happy and hydrated. So, you still get the microbiome-balancing benefits of our phages, which eliminate blemish-causing bacteria and reduce both redness and inflammation, plus the hydrating power of hyaluronic acid. Our phages + hyaluronic acid: two power-packed active ingredients that work together to balance your skin at every level, making it healthier and more resilient.

One of the only hyaluronic acid products that includes two forms of hyaluronic acid: a low molecular weight hyaluronic acid penetrates the skin to provide more hydration, and a high molecular weight hyaluronic acid acts as a protective barrier to keep moisture in. Combined with our extremely targeted and clinically proven phages to eradicate problem bacteria and enable good bacteria to flourish, this dual-action serum is a great foundational piece of your optimal skincare regimen. (Good for all skin types).

One bottle lasts 4-8 weeks based on 1-2x/day usage.

1 FL OZ / 30 ML 


Product Benefits

This targeted, clean, and 100% vegan product was designed to effectively:

  • Hydrate skin and protect against moisture loss
  • Eradicate problem bacteria
  • Balance your skin microbiome
  • Reduce inflammation and redness
  • Combat blemishes and breakouts
  • Relieve dryness and irritation



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, hyaluronic acid, 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 gentle cleanser
  2. Apply 2-3 pumps of Hydrating Phage Serum to clean, dry skin, covering entire face
  3. Apply any additional skincare and cosmetics products, as you normally would

If toner is desired after cleansing and before using Hydrating Phage Serum, use only non-alcohol-based toner. Let dry and then apply Hydrating Phage Serum.

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

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Customer Reviews

Based on 10 reviews
2 bottles later and it’s real

Staying with a routine is key.... or so I have been told. I usually get frustrated because it felt nothing I tried work and made my skin worse. 2 bottles now of this miracle serum my hormonal acne is manageable and almost completely at bay, my skin is glowing, supple and even my complexion has evened out. I am surprised and happy with the results so far!

Evelina Pierce
Hydrating Serum

This review is for the Hydrating serum. I am a dermatology resident so I have a sophisticated skin care regimen, which I adjust based on my skin needs. I was anxious about incorporating a new serum, however, the science behind it won me over. This allows you to tackle one of the components of complex acne pathogenesis.
This serum definitely agrees with my skin. So easy to use! No hassle, no irritation, no breakouts. My skin is well-balanced and hydrated.
One other mention is this company’s customer service. Courteous, prompt and kind! They replaced my serum without hesitation or making me send it back beforehand when I accidentally purchased the wrong one.
I will definitely be recommending this to my patients. Thanks guys,

Evelina Pierce, MD

Patricia Bassett
Love it

Makes my skin look healthy and beautiful

Jennifer Colten

So so hydrating. You feel it right away. I like it better than my previous brand except for the cost. It’s absolutely worth it if it’s affordable for you.

Total relief to discover Ellis Day

I’ve been using Ellis Day serums for two months now, and it reliably keeps my face clear and smooth. My skin is extremely sensitive, and after a terrible prolonged breakout from a new moisturizer, I tried Ellis Day—and it cleared the acne within a week. Incredible customer service and a great company.

Brittany Shaver
In Love!

I thought I loved the old wild resilience serum but the new hydrating serum is my absolute favorite! So excited they added hyaluronic acid. Been using their serum for quite a few months now and love the difference its made in my skin. Thank you Ellis Day!

Caroline V.

It seems to spread more easily on my skin. My skin usually still feels dry enough to need moisturizer a few minutes after applying the serum, especially in the winter. The serum seemed like it helped with that and my skin felt a little less dry after letting it sit for a few minutes. My skin felt less "stiff". It seemed to have the same effectiveness, if not more, than the original serum for me, and the fact that it was even smoother and silkier meant that it applied even easier on my skin.

Jennifer A.

It has made a huge difference in the texture and appearance of my skin. My face feels and looks smoother and as my husband says my face looks "fuller". ( Now that may be the results of the quarantine lbs...). I choose to believe the "plumped" look is from the hydrating effect of the serums In addition none of the serums leave my skin feeling sticky and they all absorb quickly into my skin. They also do not leave a greasy or oily residue. Plus there is not a heavy scent in any of them.

I used to wear a creme foundation to even out my skin before going out. Now all I use is a light powder. My sister who is really into face products and is always trying all sorts of serums took one look at my face on a zoom call and demanded to know what new product I was using. She thought my skin looked fabulous. Of course she ordered the original serum right away and loves it as well. I would say she was my true barometer of the serum working!

Jamie H.

It felt more moisturizing, which is very important to me! The appearance of my skin was also smoother and my pores were smaller with that serum. Your products are definitely helping with the sun damage I've acquired over the years

New formula of wild resilience

I’ve been using the product in the mornings since purchased. It feels like nothing special but I believe the results will be coming. The product is not heavy and makes your next makeup application a breeze. I let it set a few minutes before applying my tinted moisturizer.

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