Fundamentals Skincare 10% Vitamin C , Brightening Toner

Illuminate and protect with our 10% 3-O-Ethyl Ascorbic Acid treatment tonic - a next-generation, ultra-stable vitamin C formula that brightens dullness, fades dark spots, evens skin tone and defends against free radicals. This lightweight, fast-absorbing tonic penetrates deeply without oxidation or irritation, making it ideal for daily use on all skin types, including sensitive and combination.

Key Benefits of This 10% 3-O-Ethyl Ascorbic Acid Treatment Tonic

Advanced Brightening - Gradually reduces dark spots, uneven tone and dullness

Stable Antioxidant Defence - Protects skin throughout the day against oxidative stress

Collagen & Firmness Support - Helps maintain youthful elasticity and smooth texture

Lightweight, Non-Irritating Texture - Watery tonic absorbs instantly; no stickiness or residue

Versatile Daily Use - Layers beautifully under moisturiser, sunscreen or other actives

The refreshing, fast-penetrating consistency makes it an effortless addition to morning and evening routines - ideal as a brightening prep step before heavier serums or creams.

Looking for vitamin C that actually stays potent, penetrates deeply and brightens without the sting or rapid oxidation of pure L-ascorbic acid? Our 10% 3-O-Ethyl Ascorbic Acid treatment tonic delivers exactly that. 3-O-Ethyl Ascorbic Acid (also called Ethyl Ascorbic Acid or 3-O-Ethyl Ascorbate) is one of the most advanced and stable vitamin C derivatives available - combining excellent skin penetration, long shelf-life stability and gentle efficacy in a lightweight, watery tonic format perfect as the first active step after cleansing.

Why 10% 3-O-Ethyl Ascorbic Acid Is a Superior Choice

Unlike traditional ascorbic acid, which degrades quickly in water-based formulas and requires a very low pH, 3-O-Ethyl Ascorbic Acid remains stable at a skin-friendly pH, resists oxidation and converts efficiently to active vitamin C inside the skin. At 10% - a clinically relevant, high-yet-tolerable concentration - it provides powerful visible benefits:

Inhibits tyrosinase to fade hyperpigmentation, dark spots, sun damage, post-acne marks and melasma

Stimulates collagen synthesis to improve firmness, elasticity and the appearance of fine lines

Offers robust antioxidant protection against UV, pollution, blue light and environmental free radicals

Brightens overall complexion for a more luminous, even-toned appearance

Penetrates both oil- and water-loving layers of skin for deeper, more consistent results

Research and formulator data show that 3-O-Ethyl Ascorbic Acid at 5-10% delivers measurable improvements in pigmentation, radiance and skin firmness within 4-8 weeks, often with better tolerance than pure ascorbic acid - making it especially suitable for sensitive, reactive or combination skin types in daily routines.

How to use:

After cleansing, apply with a cotton pad or clean hands to face and neck. Pat gently until absorbed; no rinsing needed. Use AM and/or PM. Morning application is especially powerful for daytime antioxidant protection - always follow with broad-spectrum SPF 30+. Visible brightening and improved tone typically begin in 4-6 weeks, with optimal results after 8-12 weeks of consistent use.

Who Should Choose This Treatment Tonic?

Dull, uneven or sun-exposed skin needing gentle yet potent brightening

Sensitive or reactive types that struggle with pure ascorbic acid

Normal, combination or oily skin wanting lightweight vitamin C benefits

Those targeting hyperpigmentation, dark spots or early fine lines

Anyone seeking a stable, high-performance vitamin C active in tonic format

Patch test first. Consult a dermatologist if pregnant, breastfeeding or using prescription actives.

Fundamentals Skincare is

• Vegan friendly
• Cruelty-free
• Cosmeceutical grade
• Fragrance-free
• Made in South Africa
• dermatologically Tested and Approved

What's in the box
1 x Fundamentals Skincare 100ml plastic bottle with white screw cap