• PA5.1
  • PA5.1
PA5.1
5.1% P-hyaluronic Acid +
⍺-Tocopherol - Sunflower
Hydrating Serum
The next generation of hydration that delivers the benefits advertised by topical hyaluronic acid (if it were able to better penetrate the dermal layers) - deep hydration, moisture retention and better barrier
Regular price $26
Unit price per
Size
Key active / bioactive

5.1% biocompatible p-hyaluronic acid, a synergistic combination of 3% glycerin, 5% polysaccharide complex derived from the seeds of the tamarind flower and 1% sunflower microgreens

Key benefits

Hydration, Moisture Retention, Barrier Support, Combat Signs of Aging

Texture / scent

Lightweight aqueous gel with encapsulated bubbles / fragrance-free

How to Use

In the morning and night, apply 2 to 3 pumps onto clean face and neck.

Follow with moisturizer and sunscreen (in the daytime).

Clinically tested
Dermatologist tested
Suitable for all skin types

Clinically proven

  • 95%

    saw improvement in skin hydration after only 2 weeks*
  • 95%

    saw improvement in skin softness after only 2 weeks*
  • 92%

    saw visible improvement in skin smoothness after 4 weeks*
  • 90%

    saw visible improvement in skin radiance after 8 weeks*
  • 90%

    saw visible improvement in skin texture after 8 weeks*
  • 95%

    saw improvement in skin hydration after only 2 weeks*
  • 95%

    saw improvement in skin softness after only 2 weeks*
  • 92%

    saw visible improvement in skin smoothness after 4 weeks*
  • 90%

    saw visible improvement in skin radiance after 8 weeks*
  • 90%

    saw visible improvement in skin texture after 8 weeks*
  • Based on a blind, randomized, competitor-controlled clinical trial including over 70 testers evaluating self-perceived efficacy

Get to know PA5.1

  • Cruelty free
  • Fragrance free
  • Dye free
  • Paraben free
  • Sulfate Free
  • Dermatologist tested

Take a deeper look

Plant-made biologics.

  • Precision indoor farming is an advancement of agronomic R&D that uses controlled inputs to optimize the biomass and phytochemical composition of plants, maximizing active yield and the stability of its active composition.

  • In our LEED-certified facility, we use this method to cultivate sunflower microgreens that are measured to contain 4 to 40 times more nutrients (vitamins, minerals and antioxidants) than their mature counterparts. One such active nutrient is alpha-tocopherol (vitamin E) that not only serves as a primary barrier antioxidant protecting against lipid breakdown but is also an easily-absorbed humectant and emollient that works to draw and retain water in the skin.

Reviews
Formulation
FAQ

Customer Reviews

Based on 548 reviews
57%
(311)
28%
(156)
11%
(59)
3%
(18)
1%
(4)
V
Vd1992
Great

The P-Hyaluronic Acid Hydrating Serum has been a fantastic addition to my daily skincare routine. It deeply hydrates my skin, prepping it perfectly before I layer on my moisturizer. I love how it feels lightweight, absorbs instantly, and doesn't leave any sticky residue. Since I started using it, my skin has felt noticeably more hydrated and plump all day long. Plus, the formula is packed with safe and effective ingredients, which I really appreciate. I'm so happy with the results that I'll absolutely be buying it again when I finish the bottle!

E
Emjay
LOVE THIS SERUM!

This serum is soooo nice and hydrating!! The packaging is adorable and the serum feels so nice on the skin and absorbs quick and leaves my skin feeling so fresh and hydrated.

M
Meg
So hydrating

The most lightweight, silky texture that absorbs quickly and layers well with other skincare. It gives my skin an instant boost of hydration without feeling sticky or heavy. I love how fresh and plump my skin looks after applying it, and it helps keep dryness at bay throughout the day. The formula feels soothing, and there's no overpowering scent, which is a plus. If you're looking for a simple, effective hydrating serum that works well in any routine, this is definitely a great option.

PA5.1