Two-Step Evening Ritual
Serum first, then Booster — a sequenced evening routine that layers the two formulas in the correct order.
celimax
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The Celimax Vita-A Retinal Shot Tightening Ritual Set pairs the Retinol Shot Tightening Serum (30ml) with the Retinal Shot Tightening Booster (15ml) in one focused evening routine. The Serum is step one, combining 0.1% retinol with a 9-peptide complex. The Booster follows as step two, delivering 0.1% retinal with Matrixyl 3000, niacinamide, and panthenol.
If you are new to these formulas, begin with the Retinol Shot Tightening Serum alone for the first two weeks to let your skin adapt. Then introduce the Retinal Shot Tightening Booster gradually, adjusting the amount and frequency to your skin's tolerance.
• A complete two-step evening ritual: Serum first, Booster second
• Combines 0.1% retinol and a 9-peptide complex with 0.1% retinal and Matrixyl 3000
• Helps improve the appearance of fine lines, uneven texture, and enlarged-looking pores
• Niacinamide and panthenol help support skin comfort
• Can be introduced gradually for better tolerance
• Pair with broad-spectrum sunscreen every morning while using this routine

Serum first, then Booster — a sequenced evening routine that layers the two formulas in the correct order.
Two complementary formulas built to work together, not separately, for a more complete firming effect.
Shared A-Shot™ delivery technology and peptide support connect both steps into one consistent ritual.
A combined evening system formulated to support all three at once.
A COMPLETE EVENING SYSTEM
Most retinal routines ask you to choose one product. This ritual set pairs two: a concentrated Booster and a lightweight Serum, each formulated to play a distinct role in the same evening routine.
Rather than a single-step treatment, the Duo is designed as a system — the Serum begins the routine with 0.1% retinol and a 9-peptide complex, and the Retinal Booster follows with 0.1% retinal, Matrixyl 3000, niacinamide, and panthenol.
SHARED A-SHOT™ DELIVERY TECHNOLOGY
Both the Booster and the Serum are built on Celimax's signature A-Shot™ micro-particle technology, using fine micro-spicules and hydrolyzed sponge-derived particles to support a distinctive, targeted application. Apply gently and avoid rubbing aggressively — a mild tingling sensation is a normal part of the A-Shot™ experience with either step.
RETINAL + SERUM SYNERGY
Step 1 — Retinol Shot Tightening Serum: a lightweight 0.1% retinol serum with a 9-peptide complex, applied first after cleansing and toning to begin the evening ritual.
Step 2 — Retinal Shot Tightening Booster: applied after the Serum has absorbed, this concentrated 0.1% retinal treatment with Matrixyl 3000 completes the routine and supports firmer, smoother-looking skin.
Used together, the two steps are designed to support smoother-looking texture, elasticity, and a more refined complexion — more than either product delivers used alone.
The combined Booster + Serum routine is designed to support firmer-looking skin more consistently than a single-step treatment.
Sequenced retinal and retinol actives help refine uneven texture across the whole evening ritual.
Continued use of both steps helps support the appearance of enlarged-looking pores over time.
Matrixyl 3000, peptides, and panthenol work across both steps to support a smoother, more resilient-looking complexion.
The Serum delivers 0.1% retinol with a 9-peptide complex first, while the Booster follows with a concentrated 0.1% retinal treatment. Used as a two-step ritual, they are designed to support firmness, texture, and elasticity more completely than either product used alone.
Apply the Retinol Shot Tightening Serum first to clean, dry skin. Allow it a few minutes to absorb, then follow with the Retinal Shot Tightening Booster as the second step of your evening routine.
Yes. While the set is designed as a complete two-step ritual, each product can also be used on its own. Many people choose to start with one product before introducing the second step once their skin has adjusted.
Both formulas contain soothing, skin-conditioning ingredients, but because they include retinal and retinol, sensitive skin types should introduce them gradually. Begin with the Serum alone a few evenings per week, patch test both products, and add the Booster once your skin is comfortable.
If you are new to retinal and retinol, begin with one or two evenings per week using the Serum alone. Once your skin adjusts, gradually introduce the Booster as a second step, working up to a frequency that feels comfortable for your skin.
Yes. Following the Serum with a gentle, barrier-supporting moisturizer can help maintain comfort, especially while your skin is adjusting to retinal and retinol.
Yes. Apply a broad-spectrum sunscreen every morning while using either or both products, as retinal and retinol can increase the skin's sensitivity to sunlight.
Results vary by individual. With consistent use of both steps, many people notice smoother-looking texture and a more refined, firmer-looking complexion over several weeks of evening use.