NeoStrata Foaming Glycolic Wash vs Glycolic Renewal Smoothing Lotion

NeoStrata sells two glycolic acid products with similar names but different jobs. Foaming Glycolic Wash is a rinse-off cleanser at 18% Glycolic Acid plus 2% Lactobionic Acid, built for experienced AHA users. Glycolic Renewal Smoothing Lotion is a leave-on AHA blend for face, body and hands. Both exclude sensitive skin, and they're not meant to be layered casually.

What's the real difference?

The two products sit in NeoStrata's Resurface collection but work in different ways. Foaming Glycolic Wash is a cleanser: you apply it, work up a light foam, and rinse it off within a minute or two, so the skin's exposure to the acid is short. Glycolic Renewal Smoothing Lotion is a leave-on treatment: you apply it and it stays on the skin, which means the acid keeps working after application in a way a rinse-off cleanser doesn't. That contact-time difference is the main reason NeoStrata can use a higher percentage in the wash than it typically uses in leave-on formulas.

Quick comparison

A note on that lotion percentage: NeoStrata's own product page states two different figures in different sections — a 10% AHA blend in one place and an 8% Glycolic Acid concentration in another. We can't confirm which is correct, so we're not publishing a single number for it here or on the product's own review page until NeoStrata verifies it.

NeoStrata Foaming Glycolic Wash

This is the strongest facial wash in NeoStrata's range, and the brand is explicit that it's for experienced AHA users, not a starting point. Because it's rinsed off quickly, the 18% Glycolic Acid concentration behaves differently to a leave-on product at the same strength — but it's still not a gentle formula, and sensitive or reactive skin is explicitly excluded. Read the full Foaming Glycolic Wash review for the complete breakdown.

NeoStrata Glycolic Renewal Smoothing Lotion

This one is a leave-on lotion, and its point of difference is scope: NeoStrata formulates and markets it for the face, body and hands, not the face alone. It's built for normal and oily skin, includes Mango Seed Butter and Vitamin E to offset some of the drying effect of the acid, and — like the wash — is explicitly not suitable for sensitive or reactive skin. See the full Glycolic Renewal Smoothing Lotion review for ingredient detail and how to use it.

Can you use both in the same routine?

Not without care. Because one is rinsed off and the other stays on the skin, it's easy to underestimate how much total acid exposure you're getting if you use both regularly — cleansing with the 18% wash and then leaving the lotion on top adds up, and over-exfoliation shows up as redness, tightness, flaking or increased sensitivity over time. If you want to use both, the sensible approach is to alternate days or areas rather than layering them every time, and to introduce any change gradually while you watch how your skin responds. If you're unsure, our team can help you sequence a routine that includes both products safely.

Which one should you choose?

• Choose Foaming Glycolic Wash if you want a stronger exfoliating step built into your facial cleanse, and you already use AHA products comfortably.
• Choose Glycolic Renewal Smoothing Lotion if texture, rough patches or dullness are a concern beyond just your face — on the body or hands as well.
• Choose neither, for now, if you're new to chemical exfoliation. Both products explicitly exclude sensitive and reactive skin, and NeoStrata has gentler PHA-based options, such as its Skin Active Exfoliating Wash, that are a more sensible place to start.

If you're pregnant or breastfeeding

If you're pregnant or breastfeeding, please contact our team for advice before use.

Verdict

These are two different jobs wearing similar names. Foaming Glycolic Wash is a short-contact, rinse-off cleanse at a genuinely high 18% Glycolic Acid; Glycolic Renewal Smoothing Lotion is a leave-on AHA step for face, body and hands, at a strength NeoStrata hasn't clearly confirmed. Both explicitly exclude sensitive and reactive skin, and neither is a beginner product. Most people should pick one primary AHA step rather than run both daily — talk to our team before stacking them.

Frequently asked questions

Are NeoStrata Foaming Glycolic Wash and Glycolic Renewal Smoothing Lotion interchangeable?

No. One is a rinse-off cleanser with short acid contact time, and the other is a leave-on lotion designed to stay on the skin. They're formulated for different roles in a routine, not as alternatives to each other.

Which has more glycolic acid?

Foaming Glycolic Wash states a clear 18% Glycolic Acid figure. The Smoothing Lotion's percentage is unconfirmed — NeoStrata's own product page gives two different figures for it, so we can't say definitively which is stronger until that's resolved.

Can I use both on the same day?

You can, but it isn't something to do casually. Combining a rinse-off AHA cleanse with a leave-on AHA lotion increases total acid exposure and raises the risk of over-exfoliation. If you want to use both, alternate them or space them out, and introduce the combination gradually rather than starting both at once.

Is either of these suitable for sensitive skin?

No. NeoStrata explicitly excludes sensitive and reactive skin from both products. If that's you, look at gentler PHA-based options in the range, such as the Skin Active Exfoliating Wash, and speak to our team before starting either of these.

Which one should I start with if I'm newer to glycolic acid?

Honestly, neither is the best entry point — both are positioned by NeoStrata for people who already use AHA products regularly. If you're newer to acids, a lower-strength PHA cleanser is a more sensible place to build tolerance before trying either of these.