LÉ Blog

If there's one ingredient that shows up across nearly every skin type and concern, it's niacinamide. And unlike a lot of skincare buzzwords, the hype here is grounded in real research. Generally speaking, niacinamide is a form of Vitamin B3 (specifically, the amide form of nicotinic acid), and it plays a role in some of the skin's most fundamental functions. Barrier health, hydration, oil balance, pigmentation: it has a hand in all of it. The chemists consider it the jack of all trades in the...

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Finding the best hyaluronic acid serum can feel like chasing a moving target. With endless options on the market, widely varying price tags, and ingredient labels that read like a science textbook, it’s easy to get overwhelmed, especially when your skin isn’t giving you clear answers. This guide is for anyone who’s ever asked, “What does hyaluronic acid do for your skin?” or wondered why some hyaluronic acid products seem to do nothing while others leave skin feeling plump, calm, and balanced...

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Acne is one of those concerns where people understandably reach for anything with a reputation for results, and glycolic acid comes up a lot. It's one of the most researched alpha hydroxy acids in skincare, with decades of data behind it. But "well-researched" doesn't always mean "right for every scenario," so it's worth knowing what glycolic acid actually does before building a routine around it. The short version: glycolic acid works on the skin's surface, not inside the pore. It's a useful...

Read more about Is Glycolic Acid Good For Acne? A Skin Chemist Explains

If you've been curious about chemical exfoliants but found AHAs too irritating or BHAs too targeted, PHAs are worth trying. They've been around since the 1990s but are still relatively newer players compared to glycolic acid, which means the research body is smaller, but what's there is promising. Known for their mild exfoliating properties, PHAs help lift away dead skin cells while supporting a smoother, more balanced-looking complexion, making them a popular choice for people with sensitive...

Read more about What Is A PHA In Skincare & How To Use

Dark spots like post inflammatory hyperpigmentation (PIH) have a way of sticking around long after the original trigger has faded. Sun exposure, post-breakout marks, and hormonal shifts can all leave behind uneven pigment that takes patience (and a good strategy) to improve. Among hyperpigmentation ingredients, you’ll find arbutin shows up frequently in modern formulations aimed at discoloration. The main reason is that arbutin happens to essentially be a derivative of the gold standard hyper...

Read more about The Science Of Arbutin: Does It Actually Clear Dark Spots?

Ceramides are everywhere in skincare right now — recommended by dermatologists, featured on product labels, and backed by a growing body of research. But most conversations about ceramides flatten them into a single talking point: they moisturize. That's technically true, but it misses most of the story. Ceramides aren't just moisturizing agents. They're structural lipids, meaning they're part of the actual architecture of your skin. Think of them less like a drink of water for your skin and ...

Read more about Why Ceramides Became the "Barrier Repair" Ingredient Everyone Talks About

Hyaluronic acid is rarely the cause of acne, but a product containing it might. That distinction is worth understanding before pulling anything from your routine. Blaming a single ingredient too quickly for a formula problem might lead to unnecessary eliminations and persistent breakouts. With 30 years of combined formulation experience, Chemist Confessions was built to give skin the science it deserves, without the overclaiming that makes ingredient conversations so confusing in the first pl...

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Centella asiatica has been quietly doing the work long before it became a skincare headline. Known for its calming and restorative properties, this botanical has a long history in traditional medicine that continues to inform its use today. As a botanical ingredient, it's been tied to powerful soothing properties and integrates seamlessly into any routine regardless of how many actives you already use. However, the secret to capitalizing on this ingredient comes down to specific isolated mole...

Read more about What Is Centella Asiatica? Benefits, Uses, And Why Your Skin Will Love It

Yes, you can use hyaluronic acid with retinol, and for most skin types, using them together produces better outcomes than using either one alone. With retinol’s skin cell turnover benefits, skin can undergo certain changes that lead to dryness and skin flaking. Humectants like hyaluronic acid help skin maintain healthy levels of hydration to keep skin comfortable enough to stay the course. Chemist Confessions was founded on 30 years of combined formulation experience, and the belief that know...

Read more about Can I Use Hyaluronic Acid With Retinol?

Retinaldehyde is starting to show up more often in skincare conversations, and for good reason. It sits in a unique position within the retinoid family, making people curious but also a little unsure. If you’ve ever felt caught between wanting the results that retinoids bring but wanting to keep your skin calm, you’re not alone. There is a lot of noise around vitamin A ingredients, and not all of it is easy to interpret. Names sound similar, claims can feel big, and it’s not always clear what...

Read more about What Is Retinaldehyde? Cosmetic Scientists Explain