Are you experiencing normal skin reactions from active ingredients in your medical skincare? Our blog post covers common side effects from powerful skincare ingredients like retinoids, hydroxy acids, and vitamin C. Learn how to identify normal reactions like dryness, flaking, and redness, and how to manage them effectively. We'll also offer tips on gradually introducing new products into your skincare routine to minimize the risk of adverse reactions. Read on to learn how to achieve beautiful, healthy skin with medical-grade skincare products.

Normal vs. Allergic skin reactions

Whether your skin likes the new product or not, you're likely to notice a reaction, from mild stinging, burning, and itching to red rashes and skin swelling.

It can be an expected irritation, like mild stinging from an acid-based product or peeling and redness from topical retinoids. An allergic reaction, by contrast, can be painful and long-lived, rather than a mild bout of side effects. If a product stings your skin beyond what you can tolerate, wash it off. Try the product again in a few days in a small area, and see if your skin can tolerate it better.

Easing your skin into the new regimen

When starting a new product or regimen, pay close attention to how your skin "talks back to you". Check for dry skin, flaking, redness, and acne. If your skin becomes dry, red, and irritated from a product (which can happen with certain products like chemical exfoliators), reduce use: Start with 1 to 3 times a week. Give your skin a few days between applications to adjust.

Positive results

Most skincare products with active ingredients, such as topical antioxidants, retinoids, and pigmentation treatments, take about two months to show efficacy.

Stinging

You may experience tingling and stinging from active ingredients. This is where it may get confusing—not all products should sting! It all depends on the product and the ingredients. 

Many proven skin-care ingredients, like acids and retinoids, might sting; in that particular case, they're supposed to. Tingling and stinging from these active ingredients are expected and even beneficial if they last only a short time. The goal is immediate inflammation, followed by skin peeling. This reaction encourages new collagen growth and cellular renewal.

However, a delicate balance matters. Skincare products should not cause prolonged burning and irritation. Stop using the product if you have an allergic reaction, such as eyelid or lip swelling, or hives. If your adverse skin reaction doesn't improve a few days after you stop using the product and you can't manage it with over-the-counter skin-calming options, see your medical practitioner. Tingling and stinging sensations from irritating and sensitizing ingredients can harm your skin, accelerate aging, and worsen skin conditions like acne and rosacea.

Flaking

Mild, temporary dryness or flaking is expected when using glycolic products because dead skin cells start to shed. We suggest wiping off your facial cleanser with a lukewarm facecloth or microfibre sponge. This will help remove the loose, flaking dead skin cells.

Sensitivity reactions

Signs that you may experience sensitivity reactions include: The eye area looks crinkled, dry, puckered, or wrinkled, making it look older; this is a temporary side effect. Cutting back on applications lets the dead cells stick together, causing the skin to pull together or pucker like a scab, flake, or exfoliate off, returning your skin to normal.

We suggest wiping off your facial cleanser with a lukewarm facecloth. This will help remove loose, flaking dead skin cells. The skin around your eyes, mouth, neck, and nose is thinner and more sensitive.

Reducing applications in these areas until your skin adjusts will solve the problem. Eventually, these areas will catch up with the rest of your face, and all sites will have the same application schedule.

Introducing active ingredients into your skincare regimen can transform your skin’s health and appearance, but it’s important to listen to your skin along the way. Dryness, flaking, or short-lived stinging may be part of the adjustment period, while persistent swelling, burning, or hives signal that it’s time to stop and reassess. Start slowly, be consistent, and give your skin time to adapt.

If you’re unsure whether a reaction is normal or cause for concern, contact our Clinical Advice Team for personalized assistance.