6 Skin-Care Ingredient Combinations That Don’t Mix
.jpeg)
6 Skin-Care Ingredient Combinations That Don’t Mix
Skin products may work well for you on their own, but do they all work in combination? “Some ingredients don’t play nice with each other,” says Brooke Sikora, MD, a dermatologist with SkinCare Physicians in Chestnut Hill, Massachusetts. Ingredients that people should avoid layering in a regimen are those that are difficult to keep stable in a formula, increase the risk of irritation together, or block each other out when a person uses them together, she says.
With a little know-how you can streamline your routine to make sure all the components are working for you and getting you closer to your good-skin goals. Here are scenarios where extra caution is in order.
1. Retinoid or Retinol and Alpha Hydroxy Acid
Vitamin A derivatives like retinol and retinoids — and alpha hydroxy acids (AHAs) like glycolic acid — are a dermatologist’s go-to for anti-aging. They speed skin cell turnover and increase collagen production for glowy, fine line–free skin. Using them together, however, does not have the same effect. Because they both exfoliate the outer layer of skin, “they possess potentially irritating side effects, especially in combination,” says Elizabeth Bahar Houshmand, MD, a double-board-certified dermatologist in Dallas.
When skin shows signs of irritation (think: red, stingy, flaking, and peeling), you’re less likely to stick to the regimen. You don’t have to choose one or the other. She advises patients to use these topicals on alternate days (AHA on Monday, retinoid on Tuesday, and so on).
One exception? Products that have been specifically tested through clinical trials that combine retinoids and AHA, says Deirdre Hooper, MD, a board-certified dermatologist at Audubon Dermatology in New Orleans. One such is AlphaRet by Skinbetter Science. A study found that this combination retinoid cream performed as well as a prescription retinoid product in diminishing the signs of aging with fewer side effects like redness.[1]
2. Retinoid or Retinol and Benzoyl Peroxide
Retinoids may support anti-aging, but they’re also a powerful acne treatment, as they exfoliate skin to prevent clogged pores. As such, you may be tempted to use both a retinoid and a benzoyl peroxide. However, using these at the same time might not have the intended effects.
“Benzoyl peroxide may deactivate the retinoid molecule,” says Dr. Sikora. However, there are a few newer formulations of the retinoid tretinoin that stay stable with benzoyl peroxide, according to research.
A specially formulated product called Epiduo Forte combines both adapalene (a retinoid) and benzoyl peroxide safely and efficaciously, she says. Alternatively, consider using benzoyl peroxide in the morning and your retinol at night.
3. Retinoid or Retinol and Vitamin C
The third don’t-layer combo is retinoids and vitamin C. “Vitamin C is a tough ingredient to formulate with because it’s most effective in an acidic pH environment. Retinol works in a higher (more alkaline) pH. If using them together, they won’t work optimally,” says Sikora.
The easy fix is to use both at the times they were intended. Sikora advises that people get the most benefit from applying retinol at night, it makes skin more photosensitive, increasing risk of sun damage during the day. Conversely, vitamin C works best in the daytime, as it’s an antioxidant that protects against the skin-damaging effects of pollution and UV rays, she says.
4. Retinoid or Retinol and Salicylic Acid
Adult skin also commonly develops acne.[4] In an effort to reduce the appearance of fine lines and wrinkles, a dermatologist may have advised using a retinoid.[5] You may also be using salicylic acid to treat acne.[6] Salicylic acid is a beta hydroxy acid (BHA) that increases skin cell turnover to keep pores clear.[7]
Sikora advises that each can dry out the skin in isolation, meaning that extra caution is necessary when using both. Combining them risks making the skin too dry, which can lead to irritation and worsen symptoms. “To compensate for being overly dry, skin will ramp up oil production, which can create a vicious cycle of dryness and acne,” says Sikora. The fix: Use salicylic in the morning and your retinoid at night.
5. Soap-Based Cleanser and Vitamin C
Vitamin C, also known as ascorbic acid, requires a PH (or a measurement of acidity) lower than 3.5 to enter the skin, per a review of studies.[8] However, soaps and soap-based cleaners may have a higher PH. According to one study, the liquid soaps that the researchers tested had a mean PH of 5.9 and bar soaps a mean of 10.3.[9] Depending on the product, using them at the same time may mean that the alkalinity of the soap blocks the skin from absorbing vitamin C.
And that’s a problem. It may mean you’re missing out on protection from free radicals, which a study review suggests age skin.[10]
Using multiple forms of the same skincare product offers little benefit, says Dr. Hooper. One example is using two benzoyl peroxide acne products. Another example is applying a glycolic acid mask and then finishing with a cream containing mandelic acid, as both are AHAs.
“My concern with doubling up on the same active is irritation,” she says. Increased irritation is a sign that the products have disrupted skin barrier, Hooper explains, which only boosts the likelihood of suffering side effects from active ingredients.
That said, there is an exception: If you do this without incident — as in, your skin does not get red and stingy after using two AHA-containing products — and you’re getting the results you’re looking for, then Hooper advises that it is probably safe to continue. For most people, though, this is likely to be too harsh.
Comments
You must be logged in to comment.
Latest Articals
-
How to Successfully Start Your Own Business
IntroductionStarting a business is an exciting journey that requires careful planning and execution. Many entrepreneurs dream of turning their ideas into successful ventures, but navigating the steps from concept to launch can feel overwhelming. With the right guidance and strategy, setting up a business can become a smooth and rewarding process.Why Planning is CrucialBefore diving into operations, every entrepreneur must focus on strategic planning. Using professional guidance for setting up a business can make the process easier and help avoid common pitfalls. Planning includes identifying your target market, understanding customer needs, and defining clear goals for your company.A strong business plan also considers finances, staffing, and potential risks. This foundation ensures that your venture starts on a solid footing and improves your chances of long-term success.Key Steps in Setting Up a BusinessStarting a business involves multiple essential steps:Business Idea Evaluation: Assess whether your idea solves a problem and has market...
-
Top Real Estate Investment Trusts to Work For in the USA
When it comes to building a career in real estate, one of the best opportunities lies within Real Estate Investment Trusts, commonly known as REITs. These organizations own, operate, or finance income-producing real estate across a wide range of sectors. For professionals looking to combine their passion for real estate with stability and growth, exploring the Top Real Estate Investment Trusts to Work For in the USAcan onIn this blog, we’ll explore what makes REITs attractive employers, the benefits of working for them, and highlight some of the most recognized names in the industry. Whether you’re just starting your career or seeking a new challenge, this guide will help you discover which REITs stand out as top employers in the U.S.Why Work for a REIT?REITs are not only strong investment vehicles but also provide rewarding careers for those interested in real estate, finance, asset management, development, and operations. Employees at...
-
Understanding IUI Treatment: Costs and Benefits in Pakistan
IntroductionInfertility is a growing concern that affects many couples across Pakistan. Medical advancements have introduced several treatment options that help individuals achieve parenthood. Among these, intrauterine insemination (IUI) has become one of the most commonly recommended methods. Known for being less invasive and cost-effective compared to other procedures, IUI offers hope to couples seeking professional fertility assistance.IUI Costs and AffordabilityWhen couples consider fertility treatment, one of the first questions that arise is the iui cost in pakistan. The cost generally varies depending on the clinic, the experience of the doctors, and any additional medical procedures required. Compared to treatments like IVF, IUI is relatively more affordable, making it accessible for a larger number of patients. This affordability factor is one reason why many couples choose to start with IUI as their first line of treatment.What is IUI and How Does It Work?IUI is a fertility procedure in which washed and...
-
Professional Event Organizers in UAE: Turning Ideas into Reality
IntroductionThe United Arab Emirates has become one of the world’s leading destinations for global business meetings, luxury weddings, and cultural celebrations. With its modern infrastructure, international appeal, and thriving hospitality sector, the UAE is a hub for world-class events. Behind every successful gathering, however, stands a dedicated team of professionals who ensure that every detail is executed to perfection.Why Businesses and Individuals Choose Event Organizers in the UAEHiring expert event organizers in UAE allows both businesses and individuals to enjoy stress-free planning while ensuring their events are impactful and memorable. These professionals handle every aspect of the process, from selecting venues and managing logistics to coordinating décor, entertainment, and guest experiences. With their expertise, they transform concepts into well-structured and engaging occasions that leave lasting impressions.Comprehensive Event Services OfferedEvent organizers across the UAE provide a wide range of services tailored to different needs:Corporate Events: Conferences, exhibitions, product launches, and award...
-
Event Management Companies Dubai: Delivering Excellence in Every Detail
IntroductionDubai has positioned itself as a global leader in event management, offering unmatched luxury, innovation, and precision. From corporate galas and product launches to extravagant weddings and cultural celebrations, the city delivers world-class events that leave lasting impressions. This success is powered by skilled event management companies that transform visions into reality with meticulous attention to detail.Why Event Management is Key in DubaiEvent management goes beyond organizing—it’s about creating immersive experiences that connect with audiences. Dubai’s dynamic environment demands a level of professionalism and creativity that only experienced event managers can provide. This is why the city has become a hub for some of the world’s most renowned event management companies.The Expertise of Event Management Companies DubaiThe leading event management companies dubai offer comprehensive services covering every aspect of event planning. Their expertise includes concept development, budgeting, vendor coordination, logistics, and on-site management. By combining creativity with operational efficiency, they...
-
Understanding H13 Filters: Protecting Cleanrooms and Sensitive Equipment
In industries where air purity is non-negotiable, maintaining a clean and contaminant-free environment is critical. From pharmaceutical manufacturing to electronics production, airborne particles can compromise both product quality and safety. This is where H13 HEPA filters play an essential role. Known for their high-efficiency performance, H13 filters ensure that cleanrooms, laboratories, and sensitive equipment remain protected from harmful contaminants. At Rayshen, we specialize in providing top-quality H13 filters designed for maximum reliability and performance.What Are H13 HEPA Filters?HEPA, or High-Efficiency Particulate Air, filters are engineered to capture airborne particles with exceptional efficiency. H13 filters fall under the EN 1822 standard and are classified as high-efficiency filters capable of capturing 99.95% of particles as small as 0.3 microns.This makes H13 filters ideal for environments where controlling particulate contamination is critical. The filters are constructed using densely packed fibers that trap dust, pollen, bacteria, and other microscopic particles. Unlike standard air filters,...