Using Salicylic Acid to Treat Underarm Odor and Discoloration
Excessive sweating and body odor can be embarrassing and difficult to manage. The underarms are a common problem area. Salicylic acid is emerging as an effective ingredient for combating unpleasant underarm issues. It can be used to reduce odor, lighten dark patches, and provide exfoliation.
In this comprehensive guide, we'll explore using salicylic acid on armpits. You'll learn what salicylic acid is, how it works on armpits, recommended products, how to use it safely and effectively, and more.
What is Salicylic Acid?
Salicylic acid is a beta hydroxy acid derived from willow tree bark. It is a common ingredient used in many skincare products aimed at treating acne, smoothing skin texture, and encouraging cell turnover.
Salicylic acid works by penetrating deep into pores to dissolve oil, dead skin cells, and debris. This helps clean out pores and prevent clogging that can lead to breakouts. It also sloughs off the top layer of skin to reveal fresher skin underneath.
In addition to acne treatments, salicylic acid is now being formulated into more products designed for body care needs like smoothing rough elbows, knees, and heels.
Benefits of Salicylic Acid for Underarms
Using salicylic acid under the arms provides these key benefits:
- Reduces odor - Breaks down stubborn odors and bacteria buildup inside pores.
- Exfoliates - Sloughs off dead, discolored skin cells to reveal brighter skin.
- Prevents ingrown hairs - By keeping pores clear, prevents ingrown hairs after shaving.
- Treats breakouts - Clears up body acne and blemishes that occur under the arms.
- Softens roughness - Improves skin texture and smooths out bumpy patches.
Underarm Discoloration Causes
Dark or discolored patches under the arms are extremely common, especially for those who shave their armpits. Here are some of the main causes:
- Shaving irritation
- Friction from clothing
- Trapped dead skin cells
- Antiperspirant or deodorant irritation
- Clogged pores and hair follicles
- Excess keratin production
- Hyperpigmentation
Salicylic acid addresses many of the root factors behind armpit discoloration. It clears congested pores, smooths rough patches, and speeds turnover of pigmented skin cells.
Should You Use Salicylic Acid Daily?
Most dermatologists recommend using salicylic acid under the arms no more than 1-2 times per week. Using it daily could potentially cause irritation and dryness over time.
Apply salicylic acid to clean, dry armpits and allow it to sit for a few minutes before rinsing. Be sure to moisturize after use to avoid excessive drying.
Look for salicylic acid concentrations between 0.5%-2% in underarm products. Higher levels are not necessary and may increase risk of skin reactions.
Salicylic Acid vs. Glycolic Acid vs. Lactic Acid
Salicylic, glycolic, and lactic acid are all alpha hydroxy acids (AHAs) that offer exfoliation properties. Here's how salicylic acid compares:
- Salicylic Acid - Oil soluble, gets deep into pores. Best for acne and clogged pores.
- Glycolic Acid - Small molecules, penetrates surface-level. Best for fine lines and skin texture.
- Lactic Acid - Larger molecules, less irritating. Best for sensitive skin.
For underarms specifically, salicylic acid is generally the best choice. It can get deep inside congested pores and hair follicles to provide thorough exfoliation.
Salicylic Acid Underarm Routine
Here is a step-by-step routine for using salicylic acid to improve underarm concerns:
1. Cleanse
Make sure armpits are clean and free of deodorant, antiperspirant, or perfume residue. Wash with a gentle cleanser and warm water.
2. Exfoliate
Use a salicylic acid leave-on exfoliant or toner underarms. Let it soak in for 2-5 minutes before rinsing.
3. Moisturize
Apply a fragrance-free moisturizer to underarms. Look for nourishing ingredients like vitamin E, shea butter, or coconut oil.
4. Protect
Use a mineral-based sunscreen under your arms if exposed. Salicylic acid can make skin more sun sensitive.
5. Repeat
Use salicylic acid underarms 1-2 times per week maximum. On alternate days, just cleanse, moisturize, and apply sunscreen if needed.
6. Avoid Irritants
Prevent irritation by avoiding harsh scrubs, heavily fragranced products, and over-shaving underarms when using salicylic acid.
Best Salicylic Acid Underarm Products
Here are top recommended products containing salicylic acid to improve underarm concerns:
The Ordinary Salicylic Acid 2% Solution
This leave-on salicylic acid toner provides deep exfoliation for just a few dollars. The simple water-based formula contains no irritating fragrances or oils.
Paula’s Choice BHA Body Treatment
Specifically formulated for the body, this salicylic acid lotion smooths bumps and breakouts on the arms, chest, back, and underarms.
Stridex Maximum Strength Pads
These salicylic acid-saturated pads offer an easy way to wipe away odor, oil, and dirt from the underarms and target body acne.
CeraVe Renewing SA Cleanser
Containing both salicylic acid and hyaluronic acid, this body wash exfoliates while also hydrating the skin.
The Inkey List Beta Hydroxy Acid
Affordable and straightforward, this leave-on salicylic acid serum helps reduce blemishes and unclog congested pores.
First Aid Beauty KP Bump Eraser
This body scrub with salicylic and lactic acids buffs away dead skin cells and bumps under the arms and on the upper arms.
Other Tips for Improving Underarm Appearance
In addition to using salicylic acid, here are some other tips for achieving smoother, brighter underarms:
Exfoliate regularly
Use a gentle scrub or dry brushing 1-2 times per week to slough off dead skin cells.
Moisturize after shaving
Apply a fragrance-free moisturizer after shaving to prevent irritation and ingrown hairs.
Avoid strong antiperspirants
Aluminum and other harsh ingredients in antiperspirants can cause irritation for some.
Wear breathable fabrics
Choose natural fibers like cotton to allow ventilation and minimize friction under the arms.
Apply vitamin C serum
Vitamin C helps brighten skin and reduce hyperpigmentation from shaving.
Use chemical peels
Glycolic acid or lactic acid peels help fade dark marks and reveal brighter skin.
See a dermatologist if needed
For severe discoloration, prescription creams may be required to lighten excess pigment.
Precautions When Using Salicylic Acid
To avoid side effects, keep these precautions in mind when using salicylic acid underarms:
Patch test first
Apply a small amount to inner elbow overnight to check for irritation before wider use.
Start slow
Begin by using salicylic acid underarms once or twice weekly to assess tolerance.
Rinse thoroughly
Completely rinse salicylic acid from underarms after a few minutes before dressing.
Avoid deodorant immediately after
Wait until salicylic acid is rinsed away before applying deodorant, which can sting.
Moisturize after
Always use a gentle, fragrance-free moisturizer after salicylic acid to prevent dryness.
Stop if irritation occurs
Discontinue use if irritation, peeling, or burning occurs and see a dermatologist if it persists.
Does Salicylic Acid Deodorant Work?
Salicylic acid is sometimes included as an ingredient in natural deodorant formulas. The antibacterial and pore-clearing properties of salicylic acid make it seem logical for combating underarm odor.
However, there is limited evidence showing salicylic acid deodorants are significantly more effective than regular deodorant. And leaving salicylic acid against the skin for prolonged periods may increase irritation.
If you want to try a salicylic acid natural deodorant, look for a lower concentration around 0.5%. Monitor for skin reactions and discontinue use if any occur.
The Takeaway
Salicylic acid provides an effective way to treat common underarm concerns like odor, discoloration, and bumpy texture. But take care not to over-use it, as too much exfoliation can compromise the skin moisture barrier.
When combined with gentle daily cleansing and moisturizing, salicylic acid can keep your underarms looking and feeling smooth. Just remember to apply it sparingly and take steps to protect the skin.
FAQs
Can I use salicylic acid after shaving armpits?
It's best to avoid salicylic acid right after shaving, as it may sting. Wait at least 24 hours after shaving before applying it underarms.
How long until I see results from salicylic acid?
Improvements in texture, tone, and congestion may be noticeable within 1-2 weeks. But allow 4-6 weeks for optimal results from continued use.
Should I use a salicylic acid body wash?
Yes, a cleanser with salicylic acid can help reduce odor and acne on the chest, back, and underarms while bathing.
Can I use salicylic acid if I have sensitive skin?
Start very slowly with a low concentration if you have sensitive skin. Discontinue use if it causes excessive redness or irritation.
What strength of salicylic acid is best?
For underarms, a 2% salicylic acid solution or serum is ideal. Higher strengths may be too irritating for delicate underarm skin.
Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult with a healthcare professional before starting any new treatment regimen.
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