AHA 101: A Complete Guide to Alpha Hydroxy Acids for Brighter, Smoother Skin

Alpha Hydroxy Acids (AHAs) are among the most researched and dermatologist-recommended exfoliating acids in professional skincare. When used correctly, AHAs improve texture, tone, hydration, and signs of aging. When misused, they can compromise the skin barrier—making professional guidance essential.

At Luminance Beauty & Body in Roswell, GA, AHAs are carefully selected and professionally applied within customized facials and chemical peel services to ensure maximum benefit with minimal irritation.

This guide breaks down everything you need to know about AHAs, including types, benefits, safe usage, and how we use them in the treatment room.

What Are AHAs?

Alpha Hydroxy Acids are water-soluble chemical exfoliants derived from fruits, milk, and sugar sources. Dermatologists confirm that AHAs work by breaking the bonds between dead skin cells, allowing them to shed more efficiently and reveal healthier skin underneath.

Dermatologist-backed benefits of AHAs include:

• Smoother skin texture

• Brighter complexion

• Improved hydration

• Reduced fine lines and wrinkles

• Enhanced collagen stimulation

• Improved product penetration

The Main Types of AHAs (Dermatologist-Recognized)

1. Glycolic Acid

Source: Sugar caneMolecular size: Smallest AHA (penetrates deeply)

Benefits:

• Improves fine lines and wrinkles

• Stimulates collagen production

• Treats uneven tone and sun damage

• Refines pores and texture

Best for:Normal, oily, aging, and sun-damaged skin

At Luminance:We use 35% Glycolic Acid Peel professionally to rejuvenate the skin while infusing calming ingredients like green tea to reduce irritation.

2. Mandelic Acid

Source: Bitter almondsMolecular size: Larger (penetrates slowly)

Why dermatologists love it:Mandelic acid is one of the most gentle AHAs, making it ideal for sensitive skin and deeper skin tones.

Benefits:

• Improves hyperpigmentation

• Brightens uneven skin tone

• Treats acne gently

• Minimal irritation and redness

At Luminance:Our 25% Mandelic Acid Peel is self-neutralizing and ideal for:

• Sensitive skin

• Low AHA tolerance

• Over-treated or compromised skin

• Clients with pigment concerns

3. Lactic Acid

Source: MilkKey feature: Hydrating exfoliant

Benefits:

• Improves dry and dehydrated skin

• Gently resurfaces

• Strengthens the skin barrier

• Enhances glow

Best for:Dry, sensitive, and mature skin types

Use in facials:Often blended into hydrating and brightening facial protocols rather than aggressive peels.

4. Citric Acid

Source: Citrus fruitsPrimary role: pH balancing and brightening

Benefits:

• Enhances skin radiance

• Supports collagen production

• Helps stabilize other acids

Typically used as a supporting AHA in professional formulations.

5. Malic & Tartaric Acids

Sources: Apples and grapesRole: Supportive exfoliation

These AHAs are rarely used alone but help:

• Boost exfoliation performance

• Improve skin clarity

• Enhance overall resurfacing results

When Should You Introduce AHAs?

Dermatologists and estheticians agree that timing and skin readiness matter.

Best time to start AHAs:

• After establishing a basic routine (cleanser, moisturizer, SPF)

• When dealing with dullness, texture, or mild pigmentation

• NOT when the skin barrier is compromised

Professional rule:Clients new to acids should start with gentler AHAs like mandelic or lactic acid under professional supervision.

How to Use AHAs Safely (Derm + Esthetician Guidelines)

At Home:

• Use at night only

• Start 1–2 times per week

• Always follow with moisturizer

• Wear SPF daily

In the Treatment Room:

• Strength and pH are professionally controlled

• Skin is prepped and neutralized properly

• AHAs are layered with calming, reparative products

This is why professional facials deliver better results with less risk.

AHAs Used at Luminance Beauty & Body

Professional AHA Options:

• 25% Mandelic Acid Peel – gentle, pigment-safe, self-neutralizing

• 35% Glycolic Acid Peel – collagen-boosting, rejuvenating, tone-correcting

How We Use AHAs:

• Integrated into customized facials

• Added as treatment enhancements

• Used in corrective peel series

• Combined with calming, hydrating, and barrier-repair steps

Each AHA treatment is selected based on:

✔ Skin type

✔ Fitzpatrick level

✔ Sensitivity

✔ Treatment history

✔ Desired outcome

Who Are AHAs Best For?

AHAs are ideal for clients experiencing:

• Dull or rough skin

• Uneven skin tone

• Hyperpigmentation

• Fine lines and early aging

• Dehydration

• Congestion without active inflammation

When to Avoid AHAs

AHAs should not be used:

• On compromised or broken skin

• During active infections or rashes

• Immediately after aggressive treatments

• Without daily SPF

Clients using retinoids, acne medications, or undergoing corrective treatments should always consult an esthetician first.

Why Professional Guidance Matters

Overuse or incorrect layering of AHAs can lead to:

• Barrier damage

• Post-inflammatory hyperpigmentation

• Chronic sensitivity

At Luminance Beauty & Body, every AHA treatment is:

• Professionally assessed

• Strategically timed

• Properly neutralized

• Supported with aftercare and home care guidance

Experience Safe, Results-Driven AHA Treatments in Roswell, GA

AHAs are powerful tools—but only when used with intention and expertise. Whether you’re new to exfoliating acids or ready for corrective skin treatments, our customized facials ensure visible results without compromising skin health.

📍 Serving Roswell & Metro Atlanta✨ Book your AHA-enhanced facial at Luminance Beauty & Body

Schedule a Treatment at Luminance Beauty & Body Today

Luminance Beauty & Body

600 Houze Way, D2, STE 2

Roswell, GA 30076

(479) 518-6515

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