15% Vitamin C Serum

Elevate your glow with our 15% Vitamin C serum - a high-potency formula that visibly brightens dark spots, fades hyperpigmentation, boosts collagen and defends against free radicals for firmer, more radiant skin. This powerful antioxidant treatment evens tone, smooths fine lines and protects from environmental damage - perfect for normal, combination or mature skin ready for noticeable results.

Key Benefits of This 15% Vitamin C Serum

Advanced Brightening & Tone Correction - Visibly reduces dark spots, discolouration and dullness
Collagen Support & Anti-Ageing - Helps firm skin, soften fine lines and boost elasticity
Powerful Daily Antioxidant Defence - Shields against free radicals and environmental damage
Radiant, Even Complexion - Delivers a healthy, glowing finish with continued use
Fast-Absorbing & Layerable - Lightweight texture works seamlessly under moisturiser and SPF
The silky, quick-penetrating formula makes it an effortless morning essential - especially when followed by sunscreen to maximise photoprotection.

Ready for serious brightening and anti-ageing results? Our 15% Vitamin C serum harnesses one of the most effective concentrations available in modern skincare. At 15%, vitamin C (often in the form of L-ascorbic acid or a well-stabilised derivative) delivers clinically supported brightening, collagen stimulation and antioxidant defence - striking an optimal balance between potency and tolerability for most users. This high-strength formula targets dullness, dark spots, uneven tone and early signs of ageing while helping protect skin from daily environmental aggressors.

Why 15% Vitamin C Is a Gold-Standard Concentration

Vitamin C is one of the most researched skincare actives, renowned for neutralising free radicals, inhibiting melanin production and supporting collagen synthesis. At 15% - a concentration frequently cited as highly effective in studies and leading formulas - it provides powerful visible improvements without the extreme irritation risk of 20%+ levels:

Brightens complexion by fading hyperpigmentation, sun spots, post-acne marks and melasma

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

Offers robust antioxidant protection against UV, pollution and oxidative stress

Evens skin tone for a more luminous, youthful radiance

Enhances overall skin texture and resilience when used consistently

Dermatological insights and product testing show that 10-15% vitamin C delivers measurable brightening, tone evening and firmness improvements within 4-8 weeks, with progressive anti-ageing benefits over 12+ weeks. This concentration is particularly popular for normal-to-resilient skin types seeking maximum results - often paired with stabilisers like vitamin E and ferulic acid for enhanced efficacy and longevity.

How to use:

After cleansing (and optional gentle toner), apply 2-3 drops to face and neck. Gently pat in until absorbed. Use in the morning for daytime antioxidant benefits - always follow with a broad-spectrum SPF 30+. Start with every other day if new to high-potency vitamin C, then build to daily use. Visible brightening and smoother texture often appear in 4-6 weeks, with optimal firmness and even tone after 8-12 weeks.

Who Should Choose This Serum?

Normal to resilient skin seeking potent brightening and anti-ageing

Dull, sun-damaged or uneven-toned complexions needing correction

Those targeting dark spots, hyperpigmentation or early fine lines

Users ready for a higher-strength vitamin C routine

Anyone wanting maximum antioxidant protection in daily care.

Patch test first. Consult a dermatologist if pregnant, breastfeeding, very sensitive or using strong 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 30ml glass amber dropper bottle