L-Ascorbic Acid is the most bioavailable and most clinically proven form of Vitamin C for topical skin use. The 10% Professional-C Serum is the entry point in the Obagi Vitamin C programme: appropriate for those new to L-Ascorbic Acid, for sensitive skin that would find higher concentrations stimulating, and for anyone wanting to introduce the most clinically evidenced antioxidant morning serum available without starting at full strength.The same L-Ascorbic Acid mechanism as the 15% and 20% concentrations, at a concentration appropriate for daily use by sensitive skin types and Vitamin C beginners. Defends against UV, blue light and infrared free radical damage. Brightens through tyrosinase inhibition. Supports collagen synthesis. A reliable, evidence-based morning antioxidant foundation.Who Is It For? Those new to Vitamin C starting with the most appropriate entry concentration Sensitive, reactive or rosacea-prone skin that needs daily antioxidant protection at a tolerable concentration Those on GLP-1 medications with reactive skin wanting a gentle daily antioxidant foundation Post-procedure skin reintroducing morning antioxidant protection Anyone wanting to begin daily L-Ascorbic Acid antioxidant protection without starting at maximum strength How Does It Work?L-Ascorbic Acid at 10% provides daily antioxidant free radical neutralisation, tyrosinase inhibition for progressive brightening and collagen synthesis cofactor support, at a concentration appropriate for sensitive skin daily use without the irritation risk of higher concentrations.Key Ingredients L-Ascorbic Acid 10%: The most bioavailable and clinically proven form of topical Vitamin C at the entry concentration. Provides antioxidant protection, early brightening and collagen support with a tolerance profile appropriate for sensitive skin and Vitamin C beginners.Benefits Daily antioxidant protection against UV, blue light and infrared free radicals Progressive brightening through L-Ascorbic Acid tyrosinase inhibition Collagen synthesis support Gentle entry concentration appropriate for sensitive skin and Vitamin C beginners Foundation step for progressing to 15% or 20% with established tolerance What Results Can You Expect?At 4 to 6 weeks: improved skin radiance and early brightening with consistent daily morning use. At 3 months: progressive brightening and antioxidant protection accumulation. When tolerance is fully established, progressing to 15% produces faster and more significant results.How We Use It at Face for SoulAs a pharmacist prescriber specialising in skin health, Professional-C 10% is the Vitamin C starting point I recommend for all sensitive, rosacea-prone and post-procedure patients, and for anyone new to L-Ascorbic Acid who wants to introduce it properly before progressing to higher concentrations.How to UseApply 5 to 7 drops to clean skin morning before moisturiser and SPF. Store in a cool, dark place and use within 3 to 6 months of opening.Frequently Asked QuestionsWhen should I progress to 15%?When 10% is completely comfortable with no irritation after 8 to 12 weeks of consistent daily use. Contact us for guidance on progressing.Can I use it with tretinoin?Yes, in the morning only. Apply tretinoin in the evening.Is it pregnancy safe?No established pregnancy contraindications. Consult your midwife or obstetrician.Is it suitable for rosacea-prone skin?Yes. 10% is the most appropriate Professional-C concentration for rosacea-prone skin. Monitor tolerance and do not progress to higher concentrations without confirming comfortable tolerance at 10%.Clinical InsightAs a pharmacist prescriber, Professional-C 10% is the Vitamin C serum I prescribe for all sensitive and post-procedure patients, and for anyone for whom I want to introduce L-Ascorbic Acid properly. Starting at 10% and establishing tolerance before progressing produces better long-term compliance and outcomes than starting too high and stopping due to irritation.Complete Your RoutineMorning: Obagi cleanser, Obagi Professional-C Serum 10%, Obagi Hydrate, Obagi Sun Shield SPF 50.Why Buy From Face for Soul?At Face for Soul, Professional-C 10% is the starting point for daily Vitamin C antioxidant protection for sensitive skin and beginners. Contact us if you have questions about the right concentration for your skin type.
