🧪 A 2.5% retinol treatment booster from CIRCADIA — built for estheticians running multi-step facial protocols where accelerated cell turnover is the goal.

At a concentration well above typical OTC thresholds, this formula drives visible improvement in texture, tone, and congestion without requiring a separate neutralization step. Its self-neutralizing, minimalist carrier means it layers cleanly within existing protocols — after exfoliation or enzyme steps, before serums and moisturizers — without disrupting your service flow. It addresses the full range of surface-level concerns your clients bring most: fine lines, hyperpigmentation, sun damage, and acne-prone congestion.

The 2.5% retinol concentration also makes this a natural retail conversion moment — clients finishing a professional treatment are primed to understand why they need a lower-strength vitamin A for home use, and the step-down rationale is easy to communicate.

For practices ready to offer high-potency vitamin A facials with precision and protocol confidence.

• Visibly accelerates skin renewal: At 2.5%, Retinol works at the skin surface to visibly speed up the skin's natural renewal cycle, helping to improve the appearance of texture, dullness, and uneven tone with consistent professional use.
• Reduces the visible signs of aging: Supports a smoother, more refined skin appearance over time, visibly diminishing the look of fine lines and wrinkles through sustained skin resurfacing.
• Targets hyperpigmentation and sun damage: Regular use helps fade the appearance of dark spots, post-acne marks, and sun-induced discoloration by promoting a more even, luminous skin tone at the surface.
• Addresses acne and blemish-prone skin: Helps keep pores appearing clearer and skin looking less congested by encouraging more rapid surface cell turnover, reducing the buildup that contributes to breakouts.
• Formulated for use alongside other professional treatments: The minimalist, self-neutralizing formula is designed to layer compatibly within multi-step professional treatment protocols without requiring a separate neutralization step.

Retinol - known as Vitamin A (Retinol): A pure, direct form of vitamin A that supports visible skin renewal by accelerating the rate at which surface skin cells turn over, helping to reduce the appearance of fine lines, uneven tone, and congestion. At 2.5% concentration, this is a professionally significant dose well above typical OTC thresholds. The Acrylates/C10-30 Alkyl Acrylate Crosspolymer carrier system helps modulate delivery.

1. Cleanse the client's face thoroughly and pat dry.
2. If exfoliation or enzyme treatment is part of the protocol, complete those steps before applying the Vitamin A Accelerator.
3. Dispense a small amount (typically 2–4 drops or a pea-sized amount for the full face) onto a clean fingertip or applicator.
4. Apply evenly across the face, avoiding the immediate eye contour, lips, and nostrils. A thin, even layer is sufficient at this concentration.
5. Allow the product to absorb completely before applying any subsequent serums, moisturizers, or SPF within the protocol.
6. If using as a booster within a multi-step professional treatment, layer as directed by the applicable CIRCADIA professional protocol for the service being performed.
7. At the conclusion of the service, advise the client on home-care expectations: mild flaking or skin sensitivity in the days following a high-retinol treatment is normal; instruct them to avoid additional exfoliants and to apply SPF daily.

Working with high-concentration retinol

At 2.5%, this formula sits in the upper range of professional retinol concentrations. For first-time retinol clients or those with a compromised barrier, consider applying a thin layer of an occlusive or barrier moisturizer post-treatment (buffering technique) to moderate the rate of absorption and reduce the likelihood of reactivity without neutralizing the active. For experienced retinol clients, direct application to dry, freshly cleansed skin will maximize delivery. This service is a strong retail conversion moment: position a compatible home-care vitamin A product at a lower starting percentage as the client's bridge between professional treatments, clearly explaining the rationale for stepping down in strength for unsupervised home use.