Skinceuticals Cell Cycle Catalyst | 30ml

Additional Product Information

Size: 30ml

Texture: Very lightweight, water-based liquid serum with rapid absorption

Skin Type Suitability: All skin types and tones (normal, dry, oily, combination, sensitive)

Clinical Testing: 8-week clinical trial on 78 females, ages 27-68, Fitzpatrick types I-VI

Free-From Claims: Fragrance-free, alcohol-free, silicone-free

Packaging: Dropper bottle for precise application

Special Notes

Certifications: SkinCeuticals is the #1 medical skincare brand in the US, founded by esteemed skin scientist Dr. Sheldon Pinnell

Clinical Efficacy: Clinically proven to boost anti-ageing results by 20%

Professional Use: Can be used to prepare and prolong treatment results by removing up to 100 microns of cellular debris in just 2 weeks

Tolerability: Tested for tolerance and efficacy when layered with retinol products and other anti-ageing actives

Unique Features: First SkinCeuticals serum to introduce Taurine as a key active ingredient for cellular energy and vitality

How To Use

Application: After cleansing, apply 1/3 of a dropper (approximately 4-5 drops) to the palm of your hand or a cotton pad. Gently smooth the serum onto dry skin across the entire face, avoiding the eye area.

Frequency: Once daily, either morning or evening. The serum is gentle enough for daily use.

Timing: For morning use, apply after cleansing and before SkinCeuticals vitamin C antioxidant serums and moisturisers. Always follow with a broad-spectrum SPF. For evening use, apply after cleansing and before serums, retinoids, and moisturisers.

Layering: If using in the morning, layer under antioxidant serums (such as C E Ferulic) and sunscreen. If using in the evening, apply before targeted treatments and night creams. Cell Cycle Catalyst was tested for compatibility with retinol products and showed good tolerance when layered appropriately.

Expert Tips: If you experience any adjustment period when first introducing the product (common with acid-based formulas), consider spacing out application to every other day initially, or alternating between morning and evening use to avoid over-application of active ingredients. The serum is an excellent preparatory treatment ahead of professional chemical peels and clinical procedures.

Full Ingredients List

AQUA / WATER / EAU, GLYCERIN, GLYCOLIC ACID, ETHOXYDIGLYCOL, SODIUM HYDROXIDE, PHYTIC ACID, LACTIC ACID, MANDELIC ACID, TAURINE, SALICYLIC ACID, CHLORPHENESIN, CAPRYLYL GLYCOL, TETRASODIUM GLUTAMATE DIACETATE

"Please note: Formulations are updated periodically by manufacturers without notice. Therefore, the ingredient lists on this website may differ from the product packaging depending on the time and country of purchase. Please refer to your product packaging for accurate ingredient lists. A patch test before use must be carried out for suitability."

FAQ

Q: Can I use Cell Cycle Catalyst if I'm already using retinol or retinoids?
A: Yes. Cell Cycle Catalyst was specifically tested for tolerance and efficacy in clinical studies where participants applied it on top of their existing anti-ageing routines, including retinol products, and good tolerance was observed. However, depending on your current regimen, if you experience any discomfort, space out the application of Cell Cycle Catalyst or switch your timing (morning vs. evening) to avoid over-application of active ingredients. Our experts recommend monitoring your skin's response and adjusting frequency as needed.

Q: What makes the multi-acid complex in Cell Cycle Catalyst different from other exfoliating products?
A: The 7.7% multi-acid complex combines both alpha hydroxy acids (Glycolic, Lactic, Mandelic, Phytic) and beta hydroxy acid (Salicylic) to deliver comprehensive multi-level exfoliation. AHAs work on the surface and within the epidermis to promote cellular renewal, whilst BHA penetrates pores to address congestion from within. This synergistic approach, combined with 1% Taurine for cellular energy and hydration, provides exfoliation that strengthens rather than compromises the skin barrier.

Q: How quickly will I see results from Cell Cycle Catalyst?
A: Clinical studies demonstrate that users experience visibly brighter skin within just 7 days of consistent daily use. After 8 weeks of use, participants showed significant improvements including a 21% reduction in fine lines, 16% improvement in discolouration, and 13% reduction in visible pores. Immediate benefits include enhanced radiance and smoother texture, whilst long-term benefits include comprehensive improvements in signs of ageing.

Q: Can I use this serum if I have sensitive skin?
A: Yes. Cell Cycle Catalyst was clinically tested on all skin types, including sensitive skin, and on all skin tones (Fitzpatrick types I-VI). The formula is fragrance-free, alcohol-free, and silicone-free to minimise irritation. It's engineered to be gentle enough for daily use whilst delivering effective exfoliation. However, as with any acid-based product, we recommend starting with a patch test and, if needed, gradually introducing the product every other day before progressing to daily use.

Q: What is Taurine and why is it included in this formula?
A: Taurine is a potent amino acid naturally found in skin that plays a crucial role in cellular energy, barrier function, and hydration. With age and environmental stressors, Taurine levels decrease in the skin. Cell Cycle Catalyst's formulation includes 1% synthetic Taurine to boost cellular vitality, stimulate skin barrier renewal, maintain optimal hydration levels, and prevent trans-epidermal water loss. It works synergistically with the multi-acid complex to deliver anti-ageing results whilst supporting skin health.

Q: Should I use Cell Cycle Catalyst in the morning or evening?
A: Cell Cycle Catalyst is versatile and can be used once daily either morning or evening, depending on your routine. For morning use, apply after cleansing, before antioxidant serums (such as C E Ferulic), and always follow with broad-spectrum sunscreen. For evening use, apply after cleansing and before other treatments and moisturisers. The serum layers seamlessly with other products and is gentle enough for daily use regardless of timing.