Kelp C 15% Vital Serum
Kelp C 15% Vital Serum
Kelp C 15% Vital Serum
Kelp C 15% Vital Serum
Kelp C 15% Vital Serum
Kelp C 15% Vital Serum
Kelp C 15% Vital Serum
Kelp C 15% Vital Serum
Kelp C 15% Vital Serum
Kelp C 15% Vital Serum
Kelp C 15% Vital Serum
Kelp C 15% Vital Serum
Kelp C 15% Vital Serum
Kelp C 15% Vital Serum
Pre-Order

Kelp C 15% Vital Serum

15% Vitamin C with Korean Sea Kelp
£60.00

5g / 0.176 oz

A next-generation Vitamin C serum powered by 15% pure Vitamin C, Korean sea kelp, and an advanced antioxidant complex to target dullness, uneven tone, dehydration, blemishes, and early signs of ageing.

Brightening & Tone Evenness
Hydration & Barrier Support
Antioxidant Defense

Glycerin, Water, Ascorbic Acid, Ethoxydiglycol, Propylene Glycol, PEG-60 Hydrogenated Castor Oil, Niacinamide, Nicotinamide Mononucleotide, Laminaria Japonica Extract, Mixed Tocotrienols / Tocopherol, Alpha-Tocopherol, Ferulic Acid, Elaeis Guineensis (Palm) Oil

Pre-Order

Estimated shipping date: Mid-March 2026
Pre-order items can be cancelled anytime before shipment.

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Product Overview

A high-performance brightening serum that delivers a clearer, more radiant complexion. Formulated with stabilised pure Vitamin C, mineral-rich Korean sea kelp, and an advanced antioxidant complex, it absorbs effortlessly to provide long-lasting glow, hydration, and low-irritation efficacy.

Suited to:
Normal, combination, sensitive, and dry skin; early dullness; uneven tone; urban or hard-water environments

Texture:
Lightweight, silky serum that absorbs quickly

Fragrance:
Fragrance-free

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KEY BENEFITS
Brightens, hydrates, and firms skin
  • Helps visibly improve discolouration, uneven tone, and pigmentation
  • Calms dryness, blemish irritation, and environmental stress
  • Hydrates deeply while supporting firmer, more elastic skin
  • Refines pores and smooths overall texture
KEY INGREDIENTS

A brightening Vitamin C complex enriched with sea kelp, niacinamide, and powerful antioxidant actives.

See Full Ingredients
Pure, stabilised Vitamin C

A high-potency, stabilised form of Vitamin C that brightens dull skin, evens tone, and refines texture with minimal irritation.

Korean Sea Kelp Extract

A mineral-rich marine extract that deeply hydrates, soothes, and strengthens the skin barrier while helping protect against the drying effects of hard-water minerals.

Niacinamide

A multitasking active that improves uneven tone, smooths texture, strengthens the barrier, and maintains a more balanced, healthier-looking complexion.

Antioxidant Complex: Tocotrienols + Ferulic Acid

A synergistic antioxidant blend that enhances Vitamin C performance and defends the skin from environmental and UV-induced oxidative stress, supporting stronger barrier resilience.

Nicotinamide Mononucleotide (NMN)

Helps support the skin’s NAD⁺* energy cycle to boost natural repair, resilience, and radiance.
*NAD⁺: a naturally occurring molecule essential for skin energy and healthy-looking renewal.

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How to Use

After cleansing, apply 3–4 drops to your face and neck, and gently spread it evenly over the skin.
Use morning and night for best results.
When using in the daytime, finish with sunscreen.

Technology

We combine advanced stabilised Vitamin C with clean water-only extraction to create formulas that remain potent, gentle and effective, especially for skin affected by dryness, dullness or hard water.

Advanced Stabilised Vitamin C

High strength. Low irritation. Longer stability.
Typical Vitamin C products oxidise quickly, turn brown and can sting sensitive skin.
We use a glycerin-stabilised Vitamin C system that improves absorption, keeps irritation low and slows oxidation for clearer, brighter results.

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What It Means for Your Skin

• Brighter, clearer skin with reduced dullness
• High potency that stays stable for longer
• Gentle enough for sensitive and dry skin
• Less prone to browning or breakdown
• A smoother, more comfortable Vitamin C experience

Water-Only Extraction (SWE)

Pure extraction using only heat, pressure and water.
Most brands rely on alcohol or harsh solvents to extract plant ingredients, which can irritate skin or degrade beneficial compounds.
We use Subcritical Water Extraction (SWE), a clean, solvent-free method that keeps actives potent and stable, unlike solvent-based methods that can degrade ingredients.

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What It Means for Your Skin

  • Potent, stable actives from plants, delivered without irritation.
  • Clean, irritant-free formulas for sensitive and dry skin.
  • Sustainably extracted to keep your skin calm, clear, and strengthened.

FAQ

  • Yes. We use pure, stabilised Vitamin C designed to stay potent while keeping irritation low.
    However, as with any active ingredient, we recommend doing a patch test first, especially if your skin is sensitive or reactive.

  • Most people notice brighter, smoother skin within 1–2 weeks.
    Dark spots and pigmentation gradually improve over 4–8 weeks, in line with the natural skin turnover cycle.

  • Yes. All KELP C products are suitable for daily, consistent use.
    If you're new to Vitamin C, begin with the 5% Melting Powder or the 3% Marine Cream, then build up as your skin adjusts.

  • Yes. They are designed to work together.
    Recommended order: Melting Powder → Serum → Cream
    You can apply the powder directly on targeted areas or mix it into your serum/cream for full-face use.

  • Yes. Vitamin C pairs best with sunscreen.
    Always apply SPF during the day to protect your skin and maximise brightening benefits.

  • Yes, but not in the same routine.
    Use Vitamin C in the morning and retinol at night to avoid irritation and get the most out of both ingredients.

  • Our stabilised Vitamin C oxidises far slower than standard formulas,
    but it is still a natural Vitamin C. For best freshness:
    • Store in a cool, dry place away from sunlight
    • Keep the lid tightly closed
    • Use within 3 months after opening
    This maintains maximum brightness, freshness, and potency.

  • Vitamin C skincare is generally considered safe, but individual circumstances vary.
    Please consult your doctor for personalised advice.

  • Our serum uses an advanced stabilised Vitamin C system that keeps pure Vitamin C highly potent while improving absorption and minimising irritation.
    Instead of using plain water, the base is mineral-rich Korean sea kelp extract, which delivers long-lasting glow, deeper hydration, and better barrier support—not just a temporary brightening effect.
    It targets dullness, uneven tone, early pigmentation, dehydration, and environmental stress in one lightweight, high-performance formula.

  • Yes. Apply the Melting Powder first, either directly on targeted areas or mixed into your serum or cream, then follow with the Vital Serum to boost overall brightening, firming, and clarity.

  • Yes.The formula is stabilised for low irritation, while sea kelp helps soothe and hydrate the skin.
    However, as with any active Vitamin C product, we recommend doing a patch test first, especially if your skin is sensitive or reactive.

  • Yes. Niacinamide helps refine pores and smooth uneven texture, while Vitamin C and sea kelp work together to improve clarity and support healthier-looking skin over time.

  • No.It delivers lasting hydration and a natural glow without heaviness.
    The texture is lightweight and silky, absorbing quickly, perfect for both morning and night, and ideal under makeup.