7 Skincare Ingredients Worth Knowing About

Walk into any skincare aisle and you're hit with a wall of buzzwords — retinol, hyaluronic acid, niacinamide, peptides. It's a lot. And when every product claims to be a miracle worker, it's hard to know what actually deserves a spot in your routine.

So let me break it down for you. These are seven ingredients that have solid science behind them and that I see making a real difference in my clients' skin. Not a complete encyclopedia — just the ones I think are genuinely worth knowing about.

1. Hyaluronic Acid

What It Does

Hyaluronic acid is a humectant, which means it draws moisture from the environment and binds it to your skin. It can hold up to 1,000 times its weight in water, which is why it's become the go-to ingredient for hydration. It plumps the skin, smooths out fine lines temporarily, and gives that dewy, healthy look.

Who It's Good For

Pretty much everyone. It's gentle, non-irritating, and works across all skin types. If your skin feels tight, flaky, or dehydrated (yes, even oily skin can be dehydrated), hyaluronic acid can help. It layers well under other products and plays nicely with nearly every other ingredient.

How to use it: Apply to damp skin — this is important. Since it draws in moisture, you want to give it something to grab onto. Follow with a moisturizer to seal everything in.

2. Retinol

What It Does

Retinol is a form of vitamin A and it's widely considered one of the most effective anti-aging ingredients available over the counter. It works by increasing cell turnover — essentially telling your skin to shed old cells faster and produce new ones. Over time, this can help reduce the appearance of fine lines, improve skin texture, fade dark spots, and even help with acne.

Who It's Good For

Anyone concerned about aging, uneven texture, or acne. But retinol demands respect — it's potent. If you've never used it before, start low and slow. A 0.25% concentration, used two to three times per week, is a reasonable starting point. Your skin may purge or feel slightly irritated at first, and that's normal as long as it's mild and temporary.

How to use it: Nighttime only — retinol makes your skin more sensitive to sunlight. Apply after cleansing, follow with moisturizer, and always wear SPF the next morning. Don't mix it with vitamin C or other strong acids in the same routine.

3. Niacinamide (Vitamin B3)

What It Does

Niacinamide is one of those ingredients that seems to do a little bit of everything, and it does it all gently. It can help regulate oil production, strengthen the skin barrier, reduce redness and inflammation, minimize the appearance of pores, and improve uneven skin tone. It's a real multitasker.

Who It's Good For

Almost anyone, but especially those with oily, acne-prone, or sensitive skin. It's one of the few active ingredients that tends not to cause irritation, which makes it a great starting point if you're new to skincare actives. I often recommend it to clients who want results but have reactive skin that doesn't tolerate retinol well.

How to use it: Can be used morning or night. Look for concentrations between 2-5% for everyday use. It plays well with most other ingredients, including hyaluronic acid and retinol.

4. Vitamin C

What It Does

Vitamin C is a powerful antioxidant that helps protect your skin from free radical damage caused by UV exposure and pollution. Beyond protection, it can brighten your complexion, help fade hyperpigmentation and dark spots, and may support collagen production over time. It also enhances the effectiveness of your sunscreen, which is a nice bonus.

Who It's Good For

Anyone dealing with dullness, uneven tone, or sun damage. It's especially beneficial if you live somewhere sunny — like here in Fort Lauderdale — because of that added antioxidant protection layer. The most common and well-researched form is L-ascorbic acid, but if your skin finds that too harsh, derivatives like ascorbyl glucoside or magnesium ascorbyl phosphate are gentler alternatives.

How to use it: Best in the morning, applied before sunscreen. Store it in a cool, dark place — vitamin C oxidizes quickly and loses effectiveness when exposed to light and air. If your serum turns brown or smells off, it's time for a new one.

5. Salicylic Acid (BHA)

What It Does

Salicylic acid is a beta-hydroxy acid that's oil-soluble, which means it can penetrate into pores and dissolve the sebum and dead skin cells that cause blackheads, whiteheads, and breakouts. It also has anti-inflammatory properties, so it can help calm existing blemishes rather than just preventing new ones.

Who It's Good For

Oily and acne-prone skin types. If you're someone who deals with clogged pores, blackheads, or recurring breakouts, salicylic acid is likely going to be helpful. It's available in cleansers, toners, and spot treatments. For ongoing maintenance, a cleanser with salicylic acid is often enough. For stubborn congestion, a leave-on treatment may be more effective.

How to use it: Start with a low concentration (0.5-2%) and use it a few times per week. If your skin handles it well, you can increase frequency. Don't combine it with retinol in the same routine — alternate nights instead.

6. Glycolic Acid (AHA)

What It Does

Glycolic acid is an alpha-hydroxy acid and one of the most popular chemical exfoliants. It works on the skin's surface to dissolve the bonds between dead skin cells, helping them shed more efficiently. The result tends to be smoother texture, brighter skin, reduced hyperpigmentation, and over time, improved appearance of fine lines.

Who It's Good For

People dealing with dullness, rough texture, dark spots, or early signs of aging. It's particularly effective for sun-damaged skin. However, if you have very sensitive or reactive skin, glycolic acid might be too strong — lactic acid (a gentler AHA) could be a better starting point.

How to use it: Start with a low concentration (5-10%) and use it at night, two to three times per week. Always follow with moisturizer and wear SPF the next day — AHAs increase sun sensitivity. Don't use it on the same night as retinol. Many of my facials incorporate professional-strength glycolic acid, which goes deeper than what you'd use at home — that's one reason professional treatments like the Aura Facial can deliver results your at-home routine can't match on its own.

7. Peptides

What They Do

Peptides are short chains of amino acids — essentially the building blocks of proteins like collagen and elastin. When applied topically, certain peptides may signal your skin to produce more collagen, which can help with firmness and elasticity over time. They can also support the skin barrier and help with hydration.

Who They're Good For

Anyone focused on anti-aging or skin firming, especially if retinol is too intense for your skin. Peptides are generally well-tolerated and don't cause the irritation that retinol can. They're not going to deliver the same dramatic results as retinol — they're more of a supportive player — but they're a solid addition to a routine, especially for mature or sensitive skin.

How to use them: Peptide serums can be used morning or night. They pair well with hyaluronic acid and niacinamide. Avoid using them at the same time as strong acids (like glycolic acid), which can break down the peptide bonds and reduce their effectiveness.

Ingredients That Don't Play Well Together

One thing that trips people up is layering actives that don't mix well. A few combinations to watch out for:

• Retinol + vitamin C — both are potent and can irritate when used together. Use vitamin C in the morning, retinol at night.
• Retinol + AHAs/BHAs — layering exfoliating acids with retinol increases your risk of irritation and barrier damage. Alternate nights instead.
• Vitamin C + niacinamide — this used to be considered a bad pairing, but newer research suggests they're actually fine together for most people. If your skin is very sensitive, separating them into morning and evening is a safe bet.
• AHAs + BHAs at the same time — doubling up on exfoliating acids is a recipe for over-exfoliation. Pick one or alternate days.

When in doubt, keep it simple. A good rule of thumb: one active per routine step, and don't try to address every concern in a single night. Your skin will respond better to a focused approach than to being hit with everything at once.

A Few Things to Keep in Mind

• More ingredients doesn't mean better. Pick two or three that address your specific concerns and use them consistently. A focused routine beats a cluttered one.
• Introduce new actives one at a time. If you start two new products at once and your skin reacts, you won't know which one caused it. Space out introductions by at least two weeks.
• Give products time. Most active ingredients need at least four to six weeks of consistent use before you'll see meaningful results. Retinol can take eight to twelve weeks. Patience is part of the process.
• Professional treatments amplify your routine. The ingredients in your at-home products work at lower concentrations than what we use in professional treatments. Regular facials — like the HydraFacial or Glass Skin Facial — deliver these ingredients at professional strength and penetration depth.

Not Sure Where to Start?

If looking at this list still feels overwhelming, don't stress. During any facial appointment, I assess your skin and can recommend which ingredients would make the biggest difference for your specific concerns. Sometimes the answer is as simple as "add a vitamin C serum in the morning" — no 15-product overhaul required.

The goal isn't to use everything on this list. It's to understand what's out there so you can make informed choices about what goes on your face. Your skin is unique, and your routine should reflect that.