GLYCOLIC ACID AND VITAMIN C: WHAT YOU NEED TO KNOW
Wondering about the benefits of glycolic acid and vitamin C? These two powerful skincare ingredients both offer a range of benefits, including supporting a brighter, more even complexion and supporting the skin's moisture barrier. But despite the similar benefits, the two ingredients are quite different. Here's what you need to know about the differences between glycolic acid and vitamin C, their similarities, and how to incorporate the two into your skincare routine.
WHAT'S THE DIFFERENCE BETWEEN GLYCOLIC ACID AND VITAMIN C?
To put it briefly, here are the key features of the two ingredients.
VITAMIN C
- An L ascorbic acid that protects from free radical damage.
- Protects the skin from environmental aggressors and sun exposure to maintain the skin's moisture barrier.
- Helps to even out and brighten skin tone.
- Addresses hyperpigmentation by protecting against sun spots and free radical damage.
- Can lead to skin sensitivity when overused.
GLYCOLIC ACID
- An alpha hydroxy acid (AHA) that removes dead skin cells.
- Addresses the visible effects of environmental damage.
- Promotes collagen production by speeding up the cell turnover cycle.
- Helps to even out and brighten skin tone.
- Can lead to skin sensitivity when overused.
WHAT IS VITAMIN C?
Vitamin C, or L ascorbic acid, is a potent antioxidant that works as a skin protector against environmental aggressors. This ingredient can help to support the skin's natural cell renewal cycle while protecting the skin moisture barrier from harmful free radicals. Vitamin C's main purpose is to protect the skin, which in turn prevents skin concerns like uneven skin texture and tone. Vitamin C is usually found in an active form, such as a vitamin C serum, like the La Roche-Posay Vitamin C 12 Brightening Serum. It can be used both morning and night, but it's usually recommended for your morning routine.
WHAT IS GLYCOLIC ACID?
Glycolic acid is an alpha hydroxy acid (AHA) that falls under the same category as ingredients like lactic acid and citric acid. AHAs work to break down the bonds between dead skin cells, supporting smoother, more even skin tone. Because it helps to remove dead skin cells that clog the pores, glycolic acid also has the power to help with sebum production that can lead to breakouts. Rather than helping to protect the skin like vitamin C, glycolic acid is beneficial in addressing the visible effects of environmental damage, such as uneven skin tone. Glycolic acid is often found in cleansers and some moisturisers and, depending on your skin type, can be used morning and night.
CAN YOU USE BOTH GLYCOLIC ACID AND VITAMIN C?
While both glycolic acid and vitamin C are skincare superstars, using them together requires a bit of caution, and it's generally not recommended to use them at the same time. If you're not sure about your routine, it's best to avoid using them in unison.
WHAT ARE THE RISKS OF COMBINING GLYCOLIC ACID AND VITAMIN C?
SKIN IRRITATION
Both glycolic acid and vitamin C are quite potent and can cause irritation and redness, especially on sensitive skin. Combining them increases the potential for this skin irritation.
REDUCED EFFICACY
Using both at the same time might render one or both less effective due to changes in pH levels, which can destabilise Vitamin C.
That being said, it's not impossible.
HOW CAN I COMBINE VITAMIN C AND GLYCOLIC ACID?
Here's what you should now about combining glycolic acid and vitamin C in your skincare routine.
GRADUAL INTRODUCTION
Introduce new products slowly into your routine, and one at a time. Start with a low concentration of each and pay close attention to how your skin reacts. You might even want to start with a patch test to see how your skin reacts. If you experience any irritation, stop using one or both products.
USE THEM AT DIFFERENT TIMES
By alternating between the two ingredients, you remove the risk of skin irritation. Apply glycolic acid to cleanse the skin of impurities, makeup and oil buildup from the day. Apply vitamin C in the morning to protect against free radicals throughout the day.
CHOOSE ONE AS YOUR MAIN INGREDIENT
Decide which ingredient is more crucial for your skin concerns and stick to that. If you're concerned about exposure to environmental aggressors and free radical damage, vitamin C is your go-to. If you're after more general exfoliating benefits that can address existing skin concerns, glycolic acid is beneficial.
NEVER SKIP SUNSCREEN
Both glycolic acid and vitamin C increase sun sensitivity, which is why it's critical that you follow them up with sunscreen during the day. Get your daily sun protection with the Anthelios range of face sunscreens.
ALWAYS READ THE LABEL AND FOLLOW THE DIRECTIONS FOR USE.
Apply 20 minutes before sun exposure. Sunscreen is only one part of sun protection so wear protective clothing and seek shade. Avoid prolonged sun exposure. Reapply every 2 hours and after swimming, towelling and perspiring in accordance with directions.
LISTEN TO YOUR SKIN
Ultimately, using glycolic acid and vitamin C together depends on your individual skin type and tolerance. If you're unsure, it's always best to err on the side of caution and consult with a dermatologist. They can give you personalised advice and help you create a skincare routine that's both effective and safe.
DISCOVER YOUR PERSONALISED SKINCARE ROUTINE
Not sure how to choose the right skincare products? Take La Roche-Posay's short skincare routine quiz for recommended products tailored to your skin type.
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