💧 A 30% lactic acid gel peel from CIRCADIA built for estheticians who need professional-grade exfoliation without locking out a significant portion of their client base — Fitzpatrick I through VI, including dry, dehydrated, and sensitivity-prone skin.

Lactic acid's larger molecular size means slower, more controlled penetration than glycolic acid at comparable strength. That translates to meaningful exfoliation and visible tone-evening with a minimal recovery profile — no significant downtime, no heavy visible peeling, and no need to turn away reactive or first-time peel clients. The formula also supports the skin's own moisture-binding pathway, so results read as smoother and more supple rather than stressed.

For practices building a peel series, this is a reliable entry-point protocol — one that acclimizes the barrier before layering in more aggressive modalities, and pairs naturally with a home-care retail recommendation between sessions.

A fit for estheticians serving a diverse clientele who want a peel that performs consistently across skin types and sensitivity levels.

• Chemical Exfoliation: Lactic acid at 30% concentration loosens the bonds between dead cells in the outermost skin layer (stratum corneum), promoting their controlled shedding and leaving the surface visibly smoother and more refined after treatment.
• Surface Hydration Support: Lactic acid stimulates the production of glycosaminoglycans — the skin's own natural moisture-binding compounds — and supports ceramide levels in the epidermal barrier, contributing to improved moisture retention and a more supple skin appearance following treatment.
• Visible Skin Tone Evening: Lactic acid inhibits tyrosinase, the enzyme involved in melanin production, helping reduce the appearance of uneven pigmentation and surface discoloration over a course of professional treatments.
• Broad Fitzpatrick Compatibility: Lactic acid's relatively large molecular size produces a more gradual penetration rate compared to other AHAs, making this 30% formulation appropriate for a wide range of clients — including dry, aging, and sensitive skin types — across all Fitzpatrick phototypes I through VI.
• Minimal Recovery Profile: Classified as a light chemical peel in gel format, this treatment is designed to deliver professional-grade exfoliation with minimal visible peeling and no significant client downtime following the service.

Lactic Acid - known as Lactic Acid (AHA): A medium-sized alpha hydroxy acid that works at the skin surface to loosen the bonds between dead skin cells in the stratum corneum, promoting controlled exfoliation. At 30% concentration, it also has well-documented humectant properties—it stimulates the production of glycosaminoglycans (natural moisture-binding compounds in the dermis) and supports ceramide levels in the epidermal barrier, improving the skin's ability to retain moisture. Lactic acid additionally functions as a tyrosinase inhibitor, helping to visibly even skin tone over time. Its larger molecular size relative to glycolic acid makes it a gentler AHA option suitable for a wider range of skin types including Fitzpatrick I–VI.

1. Perform a thorough client consultation, including Fitzpatrick phototype assessment and review of contraindications (active breakouts, recent laser treatments, use of retinoids or sensitizing agents, known AHA sensitivity).
2. Cleanse the client's face with a gentle, pH-appropriate cleanser to remove all makeup, sunscreen, and surface oils.
3. Perform a degreasing step with an appropriate pre-peel solution to ensure uniform acid contact with the skin surface.
4. Protect the periorbital area, nostrils, lips, and any areas of compromised skin with a barrier product prior to peel application.
5. Using a fan brush or gauze, apply a thin, even layer of the Lactic Acid Peel 30% to the client's face, working systematically by zone (forehead, cheeks, nose, chin).
6. Monitor the client continuously throughout processing. Observe for expected erythema and assess client comfort level; apply cool air or a fan if needed for comfort.
7. Process for the appropriate contact time per professional protocol, adjusting based on skin sensitivity, peel end-points observed, and client response.
8. Neutralize or remove the peel thoroughly with cool water or a neutralizing solution per the professional protocol for this product.
9. Apply a soothing, hydrating post-peel product appropriate for compromised skin to calm and support the barrier.
10. Apply a broad-spectrum SPF as a final step before the client leaves the treatment room.
11. Provide the client with post-peel home care instructions, emphasizing daily SPF use and avoidance of additional exfoliating agents until the skin has fully recovered.

Pro tips for this peel service

Because lactic acid's larger molecular size results in a slower penetration rate than glycolic acid, this 30% formulation is a strong entry point for clients new to chemical peels or those with dry, dehydrated, or reactive skin who would not tolerate a glycolic peel at comparable concentration. Use this characteristic to build a peel series strategy: introduce lactic acid first to acclimate the barrier, then layer in more aggressive exfoliant types as the skin's tolerance builds.

For clients with uneven pigmentation concerns, a pre-peel home-care regimen of 4–6 weeks using a mild AHA or brightening serum can help even the skin's surface and improve peel uptake uniformity. This also creates a retail opportunity: recommending a CIRCADIA home-care maintenance product between peel sessions supports both results and repeat bookings.