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With thousands of hyaluronic acid serums on the market, selecting the best hyaluronic acid serum for your skin can be utterly exhausting and confusing. We are here to help clarify and compare.

We want to help make your decision less confusing and easier by providing clear, easy to understand information on the actual differences of hyaluronic acid serums. Our nine cosmetic scientists provided us with the information and we transformed it into the easy guide below. We also compare popular serum ingredients.

What are the Differences Between Hyaluronic Acid Serums? 

Hyaluronic acid serums differ in dalton weight (size), source and purity.

Let's start with size, also known as molecular weight or dalton.

There are literally thousands of hyaluronic acid weights (sizes). 

Hyaluronic acid size determines the absorption ability of HA.


Referring to the diagram above, you can see the many different sizes of hyaluronic acid. Although most topical hyaluronic acid serums on the market are made with high weight HA or >1.800.000 daltons.

This weight of hyaluronic acid in a serum forms a moisturizing film on the surface and lasts until it is washed off during cleansing. Hence why experts agree that combining different weights into the same hyaluronic acid serum is optimal and provides the longest lasting results.

Watts Beauty combines various weights for maximum effectiveness.

Watts Beauty took a top spot in PRO skin care by combining various weights of hyaluronic acid into each pure hyaluronic acid serum formula.

    Multi Weight 1.5% Pure Hyaluronic Acid Serum Plumps Fine Lines and Wrinkles for Supple Skin that Bounces Back



    3 products



    3 products

    3 products

    • Vendor:
      Watts Beauty
      Signature Hydrating Lift ...
      From $ 22.49