New Kiehl’s High-Potency Serums: Hyaluronic Acid, Glycolic Acid, Niacinamide

It can be cumbersome to navigate ingredient-specific treatment products that target isolated issues. Ok, it’s actually really annoying. To help us take the guesswork out of stressful skin care situations, Kiehl’s has just launched three serums that are so straightforward, you’ll be both pleased and amazed. Depending on the goals for your complexion, the new High-Potency formulas include 1.5% Hyaluronic Acid (dehydration), 9.8% Glycolic Acid (uneven tone and texture), and 5% Niacinamide to (dull skin, enlarged pores). Cue Ina Garten’s signature line: “How easy is that?”

What are the new High-Potency Serums?

These water-based formulas work on their very own, laser-focused areas of concern. If you are looking to address multiple issues, you can easily cocktail them or layer with other skincare products from your repertoire. If you opt for the latter, the general rule of thumb is to apply from the thinnest to the creamiest consistency. One exception comes to mind: avoid using Retinol and Glycolic Acid in the same PM sequence. Otherwise, have fun. 

Each High-Potency serum feels quite viscous with a silky texture that glides beautifully on the skin. Every formula has two ingredients in common (Glycerin and Sodium Hyaluronate); they apply very comfortably and deliver immediate hydration in every drop. And speaking of drops… When the brand recommends 4-5 drops, they aren’t being conservative nor stingy. More than that is wasteful. These effective, efficient, and fragrance-free formulas are very Kiehl’s. 

1.5% Hyaluronic Acid – Moisture-Plumping

With only 7 ingredients, this High-Potency serum focuses on doing one thing very well– it hydrates a parched complexion in seconds. Of the three launches, this is the only one I’d feel comfortable using over my entire face, which would include the area around the eyes. If you’re new to HA formulas, mix it with your eye cream, moisturizer, or liquid makeup to boost other products’ hydration properties. Since Hyaluronic Acid holds up to 1,000 times its weight in water, it’s beneficial to apply this particular serum on damp skin after cleansing. All in all, this is a great, super hydrating option that is bound to play well with everything else in your AM and PM skincare routine. 

9.8% Glycolic Acid – Texture-Smoothing

Oh how far we have come since the ‘Sex And The City’ episode in which Samantha burns her face from a glycolic peel. When used correctly, Alpha Hydroxy Acids are your best friends. And they’re totally safe. The new Kiehl’s Glycolic booster is only to be used in the evenings and since I don’t mix AHAs with Retinol, I use it on non-retinoid nights. There is zero stinging or redness upon application and my night moisturizer never pills when applied over this serum. Target specific zones on which you’d like to lighten up hyperpigmentation or smooth out uneven tone and rough skin texture. This new treatment is formulated with just 7 ingredients. That’s an elevated basic done well. Bravo. 

5% Niacinamide – Oil-Minimizing

The perks of having combination skin end the second the weather warms up. That’s when enlarged pores and an excessively shiny T-zone become a little too pronounced for my liking. That’s when Niacinamide is introduced as a crucial ingredient in my routine. When used consistently, pores may appear tighter and age spots and stubborn post-acne marks will likely fade. Keep in mind that this is not a mattifying treatment. As you incorporate this formula into your daily lineup, you are literally training your pores to regulate sebum production. Over time, the dreaded shine before noon will no longer make an unwanted appearance. With only 10 ingredients, this soothing serum also mixes and layers very well with their other two High-Potency formulas.

Each serum is $35 (30ml) and available at

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