ISDIN Glicoisdin® 25 Intense

ISDIN Glicoisdin® 25 Intense is the strongest at-home glycolic acid peel in the Glicoisdin range - formulated with 25% glycolic acid (9.5% free acid) designed to deliver maximum at-home smoothing, brightening, and visible resurfacing for fully acclimated AHA users.

This advanced peel is recommended for experienced AHA users who have progressed through Glicoisdin 8 and 15 and are ready for maximum at-home strength.

At Le Petit Spa in Charlotte, NC, we reserve Glicoisdin 25 Intense for clients who have already built real tolerance to glycolic acid through our progression protocol - it's not a starting point, it's the destination. When used correctly and paired with diligent daily SPF, it delivers some of the most visible at-home resurfacing results we recommend.

Key Benefits

• 25% glycolic acid - strongest at-home Glicoisdin formula
• Maximum smoothing, brightening, and resurfacing
• For experienced AHA users only
• Evening leave-on treatment
• Esthetician-recommended advanced peel
• Daily SPF non-negotiable

At a Glance

• Size: 50 ml
• Category: Exfoliants
• Targets: Fine Lines & Aging, Dark Spots, Dullness & Texture, Sun Damage

Key Ingredients

• Glycolic Acid (9.5% free acid): a potent alpha-hydroxy acid that accelerates cell turnover to smooth texture, fade dark spots, and brighten dull skin
• Aloe Vera: boosts hydration while soothing and calming the skin during exfoliation

How to Use
Apply at night to clean, dry skin with a gentle massage until fully absorbed, avoiding the eye area. During the first week, apply every other night to build tolerance; move to nightly use as skin adjusts. Follow the next morning with a broad-spectrum sunscreen - daily SPF is essential, as glycolic acid increases sun sensitivity.

Ingredient and usage information published by the manufacturer.

FAQ

Is Glicoisdin 25 Intense right for a first-time AHA user?
No - this is the strongest peel in the Glicoisdin line and is intended only for clients who have already built tolerance through Glicoisdin 8 and 15.

How do I introduce this into my routine safely?
Start with every-other-night application for the first week, then move to nightly use once your skin has adjusted, always following with SPF the next morning.

Will this cause sun sensitivity?
Yes - glycolic acid increases sun sensitivity, so daily broad-spectrum sunscreen is required with this product.

Can I use this with retinol or other actives?
We recommend discussing your full routine with your esthetician before combining strong AHAs with retinol or other exfoliating actives to avoid over-exfoliation.

What results can I expect?
Clients typically see visibly smoother texture, brighter tone, and improvement in the appearance of dark spots and fine lines with consistent, correctly-paced use.

Where does this sit in the Glicoisdin range?
It's the maximum-strength option, above Glicoisdin 15 Moderate and Glicoisdin 8 Soft.