MANDELIC ACID VS. GLYCOLIC ACID FOR SENSITIVE CLIENTS

WHAT IS MANDELIC ACID?

Mandelic Acid is an alpha hydroxy acid with a notably larger molecular weight than most of its AHA counterparts. That size slows its penetration, allowing it to move through the skin more evenly rather than flooding the surface all at once. This gentle, gradual delivery makes it a wonderful choice for clients who flush easily or tend to react to actives.

It's also more oil-soluble than many other alpha hydroxy acids, so it glides through oily, congested skin with ease. Sensitive acne clients can enjoy the added bonus of its natural antibacterial properties.

BENEFITS SUMMARY

• Gentle exfoliation with a lower irritation profile
• Improved texture over time
• Brightening and a more even tone
• Compatibility with reactive, acne-prone skin

Try it in Idyllic Cleanser with 3% Mandelic Acid.

WHAT IS GLYCOLIC ACID ?

Glycolic Acid is the smallest alpha hydroxy acid. Its small size provides fast, deep penetration and offers noticeably more resurfacing, texture refinement and collagen support. That makes it a great option if you're looking to soften the look of photoaging, fine lines and uneven pigmentation.

BENEFITS SUMMARY

• Deep exfoliation and visible resurfacing
• Improved texture and tone
• Support for collagen-related concerns
• Effective results for photoaging and fine lines

Try it in Glycolic Facial Cleanser with 10% Glycolic Acid.

MANDELIC ACID VS. GLYCOLIC ACID: KEY DIFFERENCES AT A GLANCE

WHY MANDELIC ACID IS OFTEN THE BETTER FIT FOR SENSITIVE CLIENTS

Thanks to its slower, steadier penetration and gentler profile, Mandelic Acid is often the best place to start for clients with reactive skin. It also works very effectively with the skin barrier so your clients can enjoy visible, confidence-boosting results. It's a wonderful fit for clients with:

• Reactive and redness-prone skin
• Acne-prone skin with sensitivity
• Clients prone to post-inflammatory hyperpigmentation
• Clients new to chemical exfoliation

WHEN GLYCOLIC ACID STILL MAKES SENSE

Glycolic Acid isn't off the table for every sensitive client. Resilient skin that has built up some tolerance can benefit from its deeper resurfacing power. This includes:

• Resilient, non-reactive skin with photoaging, fine lines or rough texture
• Clients who have built tolerance and want more visible resurfacing
• Clients whose results have plateaued with gentler acids
• Sensitive clients in select cases, when a well-buffered, lower-strength formulation and careful assessment support it

HOW TO ASSESS SENSITIVITY BEFORE YOU CHOOSE AN ACID

A thoughtful consultation is your best tool for protecting your client's skin and getting great results. Take a moment to walk through each of these areas with your client before you choose an acid.

REACTION HISTORY

Ask about past flare-ups, allergies or sensitivities to actives, including any previous exfoliation experiences.

CURRENT ROUTINE

Review every product your client is using, since layering actives can increase reactivity.

RECENT SERVICES

Note any recent peels, microneedling or laser treatments that may have left the barrier compromised.

BARRIER CONDITION

Check for visible dryness, flaking or compromised texture before introducing any acid.

FITZPATRICK TYPE AND PIGMENTATION HISTORY

Clients prone to post-inflammatory hyperpigmentation need a gentler, more gradual approach.

SUN EXPOSURE

Ask about recent sunburn or upcoming travel and outdoor activities that could affect tolerance.

BUILDING THESE ACIDS INTO YOUR PROTOCOLS

Start gently with your sensitive clients, and let their skin guide you from there. A measured introduction gives you the chance to see how they respond before you increase frequency or strength, so you can build confidence in the process as you go.

Next, move clients gradually between formulations, one step at a time. Be sure to support the barrier before and after exfoliation with hydrating, calming products. This keeps the skin feeling soothed and balanced throughout and helps your clients enjoy the journey as much as the results!

MAKE THE MANDELIC ACID VS. GLYCOLIC ACID DECISION WITH CONFIDENCE

Choosing between Mandelic and Glycolic Acid comes down to your understanding of each client's skin. When you pair that assessment with professional-grade formulations, you give sensitive clients real results without compromising comfort.

Becoming a GlyMed+ Professional connects you with the training and products to make decisions like Mandelic Acid vs. Glycolic Acid with confidence, visit after visit. Register today to start utilizing our world-class education resources in your treatment room.

FREQUENTLY ASKED QUESTIONS

CAN YOU USE MANDELIC AND GLYCOLIC ACID TOGETHER?

Yes, Mandelic and Glycolic Acid can be combined in certain protocols. Pairing them lets you layer gentle, even exfoliation with deeper resurfacing. A professional assessment should guide the sequencing and frequency to protect the barrier.

HOW LONG SHOULD A CLIENT USE MANDELIC ACID BEFORE MOVING TO GLYCOLIC ACID?

There's no fixed timeline, since tolerance varies by client. Most sensitive clients benefit from several weeks of consistent use before introducing Glycolic Acid. Watch for stable, calm skin before progressing.

CAN CLIENTS DEVELOP SENSITIVITY TO AN ACID THEY'VE USED FOR YEARS?

Yes, skin sensitivity can shift over time due to hormones, climate or barrier changes. A client who tolerated an acid well for years may suddenly react differently. Catch these shifts early by keeping up with your reassessments.

DOES A HIGHER ACID PERCENTAGE ALWAYS MEAN BETTER EXFOLIATION?

No, a higher percentage doesn't guarantee better results. Penetration depth, formulation and skin tolerance matter just as much as concentration. The right strength is the one your client's skin can handle consistently.