SkinCeuticals

Antioxidants protect the skin from free radicals, which are unstable molecules caused by UV exposure, pollution, and daily environmental stress.

Free radicals damage healthy skin cells, leading to:

• Premature ageing
• Fine lines and wrinkles
• Pigmentation
• Loss of firmness

Antioxidants work by neutralising these free radicals before they can cause harm. This helps keep the skin stronger, clearer, and more resilient over time.

Dry or sensitive skin: Choose a gentle or lower-strength vitamin C. Hydrating formulas work best. C E Ferulic and Serum 10 are good options.

Oily or blemish-prone skin: Silymarin CF is specifically formulated for oily and blemish-prone skin.

Pigmentation and uneven tone: Vitamin C or Phloretin formulas help brighten and even out skin tone.

Skin ageing concerns: Vitamin C in the morning and resveratrol at night for repair and protection.

Very sensitive skin: Start with a simple daily vitamin C serum like Serum 10 and allow your skin to acclimatise.

SkinCeuticals is built on research led by dermatologist Dr. Sheldon Pinnell, whose work at Duke University helped define how antioxidants should be formulated to actually work on the skin.

His research established key criteria for effective topical vitamin C:

• It must be in the correct form (L-ascorbic acid)
• It must be properly concentrated
• It must be formulated at a low pH to absorb into the skin
• It must remain stable to stay effective

This research became the foundation of SkinCeuticals antioxidant formulas.

Not all antioxidants are equal. For an antioxidant to work, it must penetrate the skin, remain stable, and be present in the correct concentration.

SkinCeuticals formulas are designed to meet all three.

A key breakthrough was combining:

• Vitamin C (L-ascorbic acid)
• Vitamin E
• Ferulic acid

This combination helps stabilise vitamin C, increase antioxidant protection, and improve overall performance. This is why formulas like C E Ferulic are often referred to as the gold standard.

Once applied, antioxidants:

• Neutralise free radicals
• Reduce oxidative stress
• Support collagen production
• Help prevent visible skin damage

They don’t replace sunscreen, but they enhance protection when used alongside SPF.

Environmental damage happens every day, even when it’s cloudy. Using antioxidants daily helps prevent premature ageing, maintain brighter, healthier skin, and improve long-term skin quality.

Consistency is what delivers results.

SkinCeuticals science overview

Founder research background

Published research on vitamin C + ferulic acid

Antioxidants are your skin’s daily defence system. SkinCeuticals stands out because its formulas are not just about including antioxidants, but delivering them in a way that actually works on the skin.

SkinCeuticals sits at the premium end of skincare because the brand is built around patented formulations, long-term research, and high-quality active ingredients.

Products like C E Ferulic are often seen as the gold standard because the formulation is designed not just to include vitamin C, but to keep it stable and effective.

This antioxidant serum is used in small amounts, so one bottle can last around three to four months for many people.

SkinCeuticals are the originators of antioxidant skincare. The brand is built on decades of research, patented formulations, formula stability, high-performance ingredients, and a trusted clinical reputation.

In simple terms, you are paying for:

• Proven research
• Originator status in antioxidant skincare
• Patented formulations
• Formula stability
• High-performance ingredients
• Trusted clinical reputation

C E Ferulic is the brand’s most iconic product. It combines vitamin C, vitamin E, and ferulic acid to help protect against environmental damage while improving brightness and skin tone.

Apply it in the morning after cleansing. Use 4–5 drops on dry skin, pat in to the skin, then follow with moisturiser and SPF. Consistency is key to seeing results.

Most antioxidant serums last around three to four months when used once daily. This can vary slightly depending on how much product you use.

Some benefits, like improved glow and hydration, can appear within days. More visible changes, such as smoother texture and reduced pigmentation, usually take 4–12 weeks with consistent use.

Some products are suitable, but not all. Antioxidants are generally well tolerated, while stronger ingredients like retinol or exfoliating acids should be introduced gradually.

Yes. The brand is widely used to target fine lines, wrinkles, and loss of firmness. Antioxidants help prevent damage, while ingredients like retinol and peptides work to improve skin over time. The products also help to treat discolouration.

Yes, SkinCeuticals products can be combined with other brands. Just be mindful of layering strong active ingredients to avoid irritation. Be aware not to duplicate vitamin C products.

Yes. Most products last 6–12 months after opening. Vitamin C serums may darken over time. If the colour becomes deep orange or brown, it may be oxidised and less effective. It is best to use these antioxidants daily and use within the recommended four months of opening.

C E Ferulic: Best for ageing skin, dullness, and pigmentation. The gold standard antioxidant.

Phloretin CF: Best for pigmentation, uneven skin tone, and normal to oily skin. A lighter antioxidant that improves clarity and reduces discolouration.

Silymarin CF: Best for oily, acne-prone skin. Targets oil oxidation, helps reduce excess oil, and refines pores.

Resveratrol B E: Best for ageing, dry, or stressed skin. A night-time antioxidant that supports repair and recovery.

Not all antioxidants are equal. For an antioxidant to work, it must penetrate the skin, remain stable, and be present in the correct concentration.

SkinCeuticals formulas are designed to meet all three. The combination of vitamin C, vitamin E, and ferulic acid helps stabilise vitamin C, increase antioxidant protection, and improve overall performance.

SkinCeuticals sunscreens are designed to do more than just protect. They combine broad-spectrum UV filters with skincare ingredients to both defend and improve the skin.

They protect against UVA rays (ageing) and UVB rays (burning), helping prevent fine lines, wrinkles, pigmentation, loss of firmness, and long-term skin damage.

• Advanced protection enriched with antioxidants
• Skincare benefits such as hydration or oil control
• Lightweight textures that sit well under makeup
• Targeted formulas for different skin concerns

Oil-free / mattifying SPF: Best for oily or acne-prone skin.

Hydrating SPF: Best for dry or dehydrated skin.

Mineral SPF: Ideal for sensitive skin.

• Apply every morning as the final step in your skincare routine
• Use a generous amount, about a teaspoon for face and neck
• Reapply every 2 hours if exposed to direct sunlight
• Always pair with antioxidants for enhanced protection

Using an antioxidant serum underneath SPF helps neutralise free radicals, boost protection against environmental damage, and improve overall skin health.

SPF protects the surface. Antioxidants protect within. Together, they give complete daily defence.

Ultra Facial Defence SPF 50+: Best for normal, dry, or slightly sensitive skin.

Advanced Brightening UV Defence SPF 50: Best for pigmentation, uneven skin tone, and dull skin.

Brightening UV Defence SPF 30: A lighter brightening SPF option.

Oil Shield UV Defence SPF 50: Best for oily, combination, and blemish-prone skin.

SkinCeuticals offers different SPFs for different skin needs rather than a one-size-fits-all approach. The best choice depends on whether your priority is hydration, oil control, or treating pigmentation alongside daily UV protection.

Hydrating serums: Hydrating B5 Gel , H.A. Intensifier Multi-Glycan .

Anti-ageing: Retinol 0.3 , P‑TIOX peptide serum .

Pigmentation & brightening: Discolouration Defence , Phyto Corrective .

Blemish & oil control: Blemish + Age Defence .

Start with your main concern. Keep it simple.

• Dehydrated skin: Add hyaluronic acid
• Ageing / fine lines: Retinol in the evening + peptides if needed
• Pigmentation: Discolouration Defense + antioxidant in the morning
• Redness / sensitivity: Phyto Corrective Gel or Redness Neutraliser
• Breakouts / oily skin: Blemish + Age Defence

SkinCeuticals follows a layering philosophy. Products are designed to work together when used correctly.

Morning routine: Antioxidant → Target serum (if needed) → Moisturiser → SPF

Evening routine: Cleanse → Target serum → Retinol (if using) → Hydrating serum (if needed) → Moisturiser

Key layering tips:

• Apply thinnest to thickest texture
• Don’t overload the skin — 2–3 serums is enough
• Introduce active ingredients slowly
• Avoid mixing too many strong actives at once
• Consistency matters more than complexity