Date 22 Jul 2025
Glycolic acid has earned its place as a hero ingredient in many skincare routines, and for good reason. Originally derived from sugarcane, this alpha hydroxy acid (AHA) is widely recognized for its ability to exfoliate, brighten, and renew the skin. While most people associate glycolic acid with facial skincare, its benefits extend far beyond the face. From reducing pigmentation on the underarms to smoothing rough skin on elbows and knees, glycolic acid has become a versatile option for full-body skincare.
However, despite its widespread availability in toners, creams, and roll-ons, glycolic acid is still an active acid. That means it needs to be used mindfully, preferably under the guidance of a qualified skin expert or dermatologist, especially when applied to sensitive areas like the underarms. In this article, we’ll discuss what glycolic acid does, why it’s gaining popularity for body and underarm use, how to use glycolic acid safely, and what to expect from glycolic acid cream for underarms. We'll also explore professional treatments offered by dermatologists and tips for choosing the right products for your skin needs.
The secret lies in its molecular size. Glycolic acid has the smallest molecule among the AHAs, which allows it to penetrate the upper layers of skin more deeply and efficiently. Once absorbed, it dissolves the bonds that hold dead skin cells together, encouraging a natural shedding process. But it doesn’t stop there. It also stimulates collagen production, attracts moisture, and gradually improves skin tone and texture.
These combined actions make it particularly useful for:
Exfoliating without scrubbing
Fading pigmentation and dark spots
Unclogging pores and reducing acne
Hydrating dry, dull skin
Improving the appearance of fine lines over time
Facial skincare tends to get all the attention, but many people deal with concerns like pigmentation, dullness, and rough texture in areas such as the underarms, back, elbows, and thighs. These regions often accumulate dead skin or become irritated from shaving, tight clothing, or buildup of products like deodorants.
Underarms, for instance, are prone to darkening, irritation, and odor from shaving, product buildup, and sweat. The back may deal with acne or roughness. Glycolic acid is one of the few ingredients that can address all of these concerns without requiring a complex routine.
Brightening dark patches caused by dead skin or irritation
Reducing body odor by lowering the pH and minimizing bacterial buildup
Preventing ingrown hairs through gentle exfoliation
Smoothing rough texture and bumpy skin
Acting as a mild deodorant, though not a replacement for antiperspirants
With consistent use, glycolic acid can visibly improve tone, clarity, and texture in areas often ignored in daily skincare.
Glycolic acid is more than just a trending ingredient, it’s a clinical-grade tool that dermatologists frequently use in both in-office and prescription-strength treatments. These approaches are tailored to target more stubborn concerns like acne, pigmentation, and texture.
Here are the most common dermatologist-approved applications:
a.) Glycolic Acid Peels
In-clinic chemical peels using glycolic acid concentrations between 20% and 70% help with acne, melasma, sun damage, and uneven skin tone. These are applied by trained professionals and often done as a series over several weeks.
b.) Prescription-Strength Creams
Dermatologists may prescribe creams containing 10–20% glycolic acid for keratosis pilaris, dark underarms, or stubborn pigmentation on the body. These are stronger than OTC products and should be used under supervision.
c.) Combination Therapy
Glycolic acid is often paired with other active ingredients like salicylic acid (for acne), hydroquinone (for pigmentation), or retinoids (for anti-aging). These formulations are often customized and require dermatologist supervision.
d.) Pre-Treatment Exfoliation
Before treatments like laser resurfacing, microneedling, or radiofrequency, dermatologists sometimes use glycolic acid to prep the skin for better penetration and even results.
e.) Medical-Grade Body Polishing
Some clinics offer glycolic acid-based polishing treatments for the back, arms, or underarms, helping with concerns like acne, strawberry skin, and post-inflammatory marks.
While professional treatments offer high-impact results, many over-the-counter glycolic acid products can be safely used at home with the right precautions. Whether it’s a toner, serum, cream, or roll-on, the key is to introduce the ingredient slowly and support your skin barrier. Best practices include:
Patch Test First: Always apply to a small area (like the inside of your arm) and wait 24 hours for signs of irritation.
Start Low and Slow: Begin with a low concentration (2–5%) and apply 2–3 times per week.
Use on Clean, Dry Skin: Avoid freshly shaved or irritated skin.
Moisturize After Application: Use a gentle, fragrance-free moisturizer to avoid dryness.
Protect from the Sun: Glycolic acid increases sun sensitivity, so sunscreen is essential, even for areas not directly exposed.
Although glycolic acid is well-tolerated by many, it's not for everyone. You should use caution or avoid it altogether if:
You have very sensitive or eczema-prone skin
You’re currently experiencing skin infections, rashes, or open wounds
You are pregnant or breastfeeding (always check with your doctor)
You’ve had bad reactions to acids in the past
In such cases, it's best to speak with an expereicned dermatologist to find alternatives or appropriate formulations.
Glycolic acid is more than just an exfoliant; it’s a clinically backed, multi-benefit ingredient that can transform not only your facial skin but also areas like your underarms, back, and legs. Whether you’re looking to improve skin tone, reduce bumps, or minimize odor, this powerhouse AHA has proven benefits when used correctly.
For mild concerns, over-the-counter glycolic acid creams and roll-ons can offer noticeable improvements. But for more persistent issues, like stubborn pigmentation, keratosis pilaris, or acne scars, seeking the guidance of a dermatologist can ensure you use the right concentration, formulation, and combination of actives.
Talk to our experts at Eternelle Aesthetics in Hyderabad to make an informed choice tailored to your skin’s unique needs.
Also Read - Why Does Your Face Age, And What Can You Do?
