Have you ever ever seen a skincare product marketed as having excessive, low and even a number of weights of hyaluronic acid? When you discovered your self questioning what this implies (and whether or not or not it impacts the efficacy of the product), you’re not alone.
On this publish, I’ll clarify what it means for hyaluronic acid to return in several weights, how that impacts your pores and skin, and which weights to search for.
How Does Hyaluronic Acid Profit Pores and skin?
Hyaluronic acid (HA) is among the most ubiquitous substances in skincare. As a refresher, HA is a kind of sugar referred to as glucosaminoglycan that’s naturally produced by our our bodies. Internally, HA helps lubricate joints and different connective tissues. It’s additionally produced inside our pores and skin to maintain every little thing supple and hydrated.
In skincare, HA capabilities as a humectant. This implies it binds water to the pores and skin and helps it maintain onto moisture, stopping dehydration by means of transepidermal water loss. Finally, the result’s moisturized pores and skin that seems dewy and plump with fewer noticeable advantageous traces.
What Does It Imply to Have Totally different “Weights” of Hyaluronic Acid?
After we discuss totally different “weights” of HA, we’re speaking about molecular mass (aka the dimensions of the molecule). HA molecules are broadly categorized as small, medium, or giant and are measured in daltons.
However why does this matter? The dimensions of a HA molecule determines how deeply it may be absorbed into the pores and skin. The most important, heaviest molecules will sit on prime of the pores and skin and entice water to the outermost layer. Smaller, lighter molecules are in a position to penetrate by means of the pores and skin barrier, the place they entice water internally to plump pores and skin beneath.
Which Weight of Hyaluronic Acid is Most Efficient?
The brief reply is, HA is efficient no matter whether or not it’s low, medium, or excessive weight. All of those will enhance pores and skin elasticity and hydration to some extent. Which weight you utilize is determined by the outcomes you’re on the lookout for. The final consensus is that something beneath 50 kilodaltons may doubtlessly irritate the pores and skin whereas going above 2,000 gained’t present any extra profit.
The good thing about utilizing medium or high-weight HA is that the outcomes are instantaneous. HA is well-known for its means to right away hydrate the pores and skin, giving it a plump and dewy look. This plumping impact helps make advantageous traces seem much less distinguished. By stopping water loss, you’re additionally strengthening your pores and skin barrier which may help with more healthy pores and skin getting old over time.
Low-weight HA doesn’t have the identical quick, seen impact, however it might be more effective for the reduction of wrinkle depth in the long term. Some research have additionally advised it’s longer-acting, which means it’ll assist your pores and skin maintain on to water for an extended time frame. With low-weight HA, it’s essential to make use of it persistently for not less than a month with a view to see advantages. If wrinkle discount is your predominant objective, you can too take a look at these different substances that promote firmer pores and skin.
Alternatively, in order for you one of the best of each worlds, you possibly can search for merchandise with a mix of molecular weights. One factor to remember is that many corporations don’t disclose the precise molecular weight of their HA merchandise, however you may get a way by feeling the feel of the product. Merchandise with higher-weight molecules have extra of a slip since they sit on prime of the pores and skin, whereas smaller-weight molecules will give merchandise a extra watery texture since they soak in.
The Backside Line
Is one weight of HA higher than the opposite? The reply isn’t any, HA will enhance pores and skin hydration and elasticity no matter molecule dimension. Whether or not you search for a product with low or high-weight HA is determined by what your precedence is. Excessive-weight molecules have an instantaneous plumping and hydrating impact, offering aid for pores and skin that appears uninteresting or crepey on account of dehydration. For extra long-lasting advantages, go for smaller weights. Smaller HA molecules rehydrate pores and skin cells over time, so that you gained’t get a direct impact, however they’re higher for lowering wrinkle depth in the long term.
Personally, I are inclined to search for a product with medium to high-weight HA. I’m often on the lookout for that instantaneous gratification—I need a direct hit of moisture to carry my pores and skin to life, easy out the looks of traces, and assist me retain moisture all through the day. That is what I’ve centered on in my merchandise; my go-to’s are Moisture Infusion Toner and Skin Drink Concentrate Serum.
Lastly, whereas hyaluronic acid is a implausible ingredient, it’s not the one option to hold pores and skin hydrated! Study extra about all of my favourite substances for plumper-looking pores and skin.

Movie star Esthetician & Skincare Professional
As an esthetician educated in beauty chemistry, Renée Rouleau has spent 30 years researching pores and skin, educating her viewers, and constructing an award-winning line of merchandise. Her hands-on expertise as an esthetician and trusted skincare knowledgeable has created a real-world resolution — merchandise which are formulated for nine different types of skin so your face will get precisely what it must appear and feel its finest. Trusted by celebrities, editors, bloggers, and skincare obsessives across the globe, her huge real-world information and fixed analysis are why Marie Claire calls her “essentially the most passionate pores and skin practitioner we all know.”