C-Serum® Seaweed Filtrate Serum

Lightweight oil-free Laminaria seaweed serum boosts hydration, smooths texture, and brightens with vitamins, amino acids + antioxidants.

SKU: RR39A

Size: 50 ml / 1.7 fl oz


  • All Skin Types
  • Dehydrated
  • Aging
  • Lightweight
  • Oil Free
  • Liquid
  • Non-comedogenic
Or 4 payments of $ 21.25 using

Vitamin & Mineral-Rich Serum for Well-Hydrated, Glowing Skin

Dryness, dullness, or rough texture? This premier daily serum for all skin types delivers an intensive, lightweight, oil-free concentrate of our exclusive, sustainably harvested Laminaria Digitata Seaweed filtrate to help replenish moisture, smooth the look and feel of skin, and boost radiance.

Powered by seaweed naturally rich in 12 vitamins & minerals, 42 trace elements, and 18 amino acids—plus phlorotannins and antioxidants—it helps skin look softer, bouncier, and more luminous. Wear it alone for fast-absorbing hydration or layer under moisturizer to amplify comfort and glow.

Dermatologist tested. The essential first step in our world-renowned Four-Layer Facial® routine.

Apply to face, neck, and décolleté morning and night. Use alone for fast-absorbing hydration, or layer under Hydro-Complex PFS Moisturizing Cream to boost comfort and glow.

Water/Aqua/Eau, Glycerin, Laminaria Digitata Extract, Potassium Sorbate, Carrageenan, Glucose, Phenoxyethanol, Sodium Dehydroacetate

KEY INGREDIENTS

Complete the Regimen

C-Serum® Seaweed Filtrate Serum
$ 85.00 USD

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Overall rating: 4.8846154 / 5 from 156 reviews.

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Very watery

"Very watery"

Ashley F. (5/5)

Love this product. It adds

"Love this product. It adds so much moisture to my skin."

Julie S. (5/5)

Love the serum!

"I love the serum! But the bottle fell apart for some reason. I’m not sure how that happened. Top portion came apart."

Brendalyn S. (4/5)

Outstanding

"I use it every night before applying my Repchage moisturizer and have thus far seen phenomenal results. This brand is a keeper!"

Faigy T. (5/5)

Love it

"I love using a serum as past of my face skin care routine. This one is special and I use it twice daily."

Deborah K. (5/5)

C-Serum Seaweed Filtrate Serum

"I really like this serum. I can see and feel the difference in my skin. Thank you"

Liz C. (5/5)

Fantastic

"Used it for the past 2 years and it is worth every penny !!"

Jack K. (5/5)

"The best product!!! Love it."

Varlina (5/5)

The best product!!! Love it.

"The best product!!! Love it."

Varlina (5/5)

I love it

"I love it"

Baljit (5/5)

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