Active Hydration C+ Antioxidant Serum


Silky-smooth hydrating liquid with vit. C and hyaluronic acid to protect and renew all skin types. 5.5 pH.

  • Lightweight and fast absorbing.
  • Packed with proven active ingredients.
  • For use morning and night.


Sodium ascorbyl phosphate (vit. C) brightens dark spots and supports collagen production to promote firmer skin.

Hyaluronic acid binds moisture to the skin, boosting hydration while minimizing fine lines and other signs of aging.

Panthenol softens and soothes irritation and inflammation for smooth, calm skin.

Amino acids promote skin elasticity to reduce the visible signs of aging and support skin’s firmness.

Saccharide isomerate binds moisture to the skin’s surface for up to 72 hours for long lasting hydration.

All ingredients: Aqua, Sodium Ascorbyl Phosphate (Vitamin C), Panthenol (Vitamin B5), Saccharide Isomerate, Sodium Hyaluronate (Hyaluronic Acid), Glycerin, Sodium PCA, Sodium Lactate, Arginine, Aspartic Acid, Glycine, Alanine, Serine, Valine, Proline, Threonine, Isoleucine, Histidine, Phenylalanine, Sodium Levulinate, Sodium Salicylate, Sodium Anisate, Tetrasodium Glutamate Diacetate.

How to use

We recommend first misting clean skin with Healing Water Toning Mist. Then, use fingertips to smooth a small amount of serum onto the skin. Follow with Precious Oils Active Infusion.

Step 3 of 4 in the Activist Method

Subscription frequency

Here's what we recommend — but you can change your schedule or skip a delivery at any time.

  • Twice daily use: 1 oz each month
  • Once daily use: 1 oz every 2 months
  • A few times per week: 1 oz every 3-4 months

Subscribe & Save

Want to save time, money and the planet? Commit to caring for your skin for the long term with a subscription.

Here's how it works:

1. First, your products come in a gorgeous glass bottle for you to keep forever.

2. Next, refill pouches arrive regularly — you decide how frequently you want them to be delivered.

3. You can skip a delivery, swap products, or cancel your subscription anytime through your online account.

Customer Reviews

Based on 17 reviews

Active Hydration C+ Antioxidant Serum

Love this stuff

I use this in conjunction with the skin to skin cleanser and my skin hasn't felt this healthy since I was a teenager. I don't even need to use it every night because it does such a good job moisturizing my skin. I had never bought fancy face product before so I balked at the price at first, but honestly one bottle will last me forever! So totally worth it. Treat your skin to some decadence!


My face has never felt more healthy!! I feel radiant and have seen nothing but clear skin

I had to buy it

Nothing was more important to me in the activist method than this step, I could *heart eyes* over this serum all day! It makes my face feel so hydrated - I recently moved to a higher elevation & it’s made a huge difference to my skin!

A must have for my skin

The Active Hydration serum is my absolute favorite! If I were only allowed to keep one product from this line on hand, this would be it! Came across Activist Skincare late 2019 when my face was horribly dry no matter how much moisturizer I seemed to use. I emailed the company about suggestions and not only was Allison wonderful about answering my questions but the products she recommended absolutely saved my skin that winter.

From dry to hydrated

I love this water based formula for my dry skin. It's lightweight and really soakes into my skin. Its perfect for hot weather. I love that the ingredients are clean and come in a sustainable glass bottle. It's a great addition to my skincare routine.