Cipher Skincare C-Shield rapid refining butylresorcinol serum best vitamin c serum and hyperpigmentation treatment
Cipher Skincare C-Shield rapid refining butylresorcinol serum best vitamin c serum and hyperpigmentation treatment
Cipher Skincare C-Shield rapid refining butylresorcinol serum best vitamin c serum and hyperpigmentation treatment

C-Shield

Rapid Refining Vitamin C+ Serum

30 reviews
US$135
A dual-action vitamin C + hyperpigmentation treatment to brighten through synergistic preventative and corrective action. Antioxidants shield from free radical damage while tone-correcting actives diminish visible blemishes, redness, and dark spots. Multi-molecular weight hydrators instantly quench skin while discolourations soften for a glowing, healthful look.

Rapid Refining Vitamin C+ Serum

equiv. US$81 per 30ml (industry std.)

A dual-action vitamin C + hyperpigmentation treatment to brighten through synergistic preventative and corrective action. Antioxidants shield from free radical damage while tone-correcting actives diminish visible blemishes, redness, and dark spots. Multi-molecular weight hydrators instantly quench skin while discolourations soften for a glowing, healthful look.

The daily shield to prevent and correct damage.

Not your typical vitamin C serum. Advanced brightening technologies and time-release ascorbic acid combine in one formula to target and prevent the appearance of hyperpigmented spots, acne marks, texture, and tone.

Key Actives ascorbic acid, 4-butylresorcinol, ectoin, diglucosyl gallic acid, ascorbyl tetraisopalmitate, superoxide dismutase, snow mushroom, prebiotic microalgae, xylitylglucoside hydration complex, palmitoyl tripeptide-38, oryzanol, madecassoside
pH 3.7-4.0
Fragrance none
Skin Type All [esp. hyperpigmented, textured, acne-prone]
Frequency 1-2x/day
When [AM/PM] EITHER [especially AM]
Vegan โœ“
Texture
light rich
3.5

How It Works

Cipher Skincare C-Shield rapid refining vitamin c serum best vitamin c serum and hyperpigmentation treatment
[ 01 / 04 ]

microspongeยฎ delivery ascorbic acid

key actives Pure Ascorbic Acid in Microspongeยฎ time-release microparticles

Microspongeยฎ ascorbic acid technology represents an innovative approach to delivering pure vitamin C. This patented system encapsulates the active within porous microspheres, allowing for sustained, time-released delivery throughout the day. This method enhances the stability of vitamin C, minimises irritation, and maintains consistent antioxidant activity over time. The controlled release mechanism also helps balance excess oil, making the serum suitable for all skin types. Expect improved brightness, smoother texture, and refined clarity without the stinging sensation often associated with traditional ascorbic acid formulations.

Microspongeยฎ is a registered trademark of AMCOL International Corp.

Refining + Brightening Action

key actives 4-Butylresorcinol / Diglucosyl Gallic Acid / Fermented Gallic Acid

4-butylresorcinol, a powerful tyrosinase inhibitor, interrupts the melanin production pathway to visibly reduce hyperpigmentation and post-inflammatory marks. Diglucosyl Gallic Acid and fermented gallic acid work synergistically with vitamin C to enhance brightening and refine texture. This unique combination leverages enzymatic activation and potent antioxidant properties, amplifying the efficacy of vitamin C to promote a luminous, even complexion. By targeting multiple pathways, these actives provide a multifaceted approach to skin clarity and radiance.

Preventative Antioxidant Shield

key actives Ectoin / Diglucosyl Gallic Acid / Ascorbyl Tetraisopalmitate / Superoxide Dismutase

Ectoin and Diglucosyl Gallic Acid form a powerful defense against UV-induced oxidative damage, neutralising free radicals to maintain cellular integrity and reduce the risk of pigmentation. Ectoin stabilises cellular membranes and protects proteins from environmental stress, while Diglucosyl Gallic Acid, activated by skin enzymes, enhances photoprotection and improves redness and tone. Ascorbyl Tetraisopalmitate amplifies the stability and antioxidant effects of pure ascorbic acid, providing a synergistic boost in protecting the skinโ€™s barrier. Superoxide dismutase, a critical enzyme, further shields skin by neutralising superoxide radicals, minimising inflammation and supporting skin resilience for long-term health.

Deep Hydration + Barrier Support

key actives Snow Mushroom / Glycerin / Madecassoside / Palmitoyl Tripeptide-38 / Prebiotic Microalgae

Snow mushroom polysaccharides and glycerin deliver deep, lasting hydration by binding water to the skin for enhanced elasticity and a plump, refreshed appearance. Madecassoside from Centella Asiatica soothes irritation and supports natural repair processes. Palmitoyl tripeptide-38 works to smooth fine lines and reinforce the skinโ€™s structure, enhancing overall resilience. Prebiotic microalgae further restore balance to the skinโ€™s microbiome, ensuring optimal moisture levels and barrier strength.

Key Ingredients

4-Butylresorcinol
Gallic Acid Complex
Ectoin
Snow Mushroom
Ascorbyl Tetraisopalmitate
Superoxide Dismutase
Madecassoside
Hydration Complex
Prebiotic Green Microalgae
Palmitoyl Tripeptide-38
[ 01 / 10 ]

4-Butylresorcinol

Hyperpigmentation
A brightening resorcinol derivative also known as rucinol. It's a potent tyrosinase inhibitor that exploits synergies with vitamin C to dramatically improve the appearance of hyperpigmentationโ€”especially melasma.

Gallic Acid Complex

Diglucosyl Gallic Acid / Fermented Gallic Acid

Hyperpigmentation Anti-Redness + Sensitivity Antioxidant
Two engineered forms of gallic acid with different delivery mechanisms. The diglucosyl form is microbiome-activated โ€” skin bacteria convert it into THBA, a tyrosinase inhibitor acting across seven biological targets including MITF expression, NF-ฮบB modulation, and UV-induced DNA damage. The fermented form delivers bioavailable gallic acid directly, downregulating melanogenic proteins via PI3K/Akt and MEK/ERK phosphorylation. One slow-release, one immediate.

Ectoin

Hyperpigmentation Anti-Redness + Sensitivity Anti-Wrinkle + Laxity Antioxidant
A cyclic amino acid from extremophilic bacteria. Ectoin structures water into a protective shell around proteins and cell membranes, stabilising them against UV and oxidative stress. It also activates the Nrf2 antioxidant pathway, suppressing ฮฑ-MSH-driven melanogenesis โ€” reducing pigmentation at the source.

Snow Mushroom

Anti-Redness + Sensitivity Anti-Wrinkle + Laxity Antioxidant Hydrating Acne-Prone
A heteropolysaccharide and exceptional skin hydrator extracted from the mushroom known as Silver Ear in China. It has antioxidant properties, supports healing, and its high glucuronic acid content replenishes skin's water stores.

Ascorbyl Tetraisopalmitate

Hyperpigmentation Anti-Wrinkle + Laxity Antioxidant
The tetraester of ascorbic acid and isopalmitic acid. This oil-soluble vitamin C derivative is formulated to visibly brighten, help reduce the appearance of UV-induced cellular damage, and support collagen synthesis.

Superoxide Dismutase

Anti-Redness + Sensitivity Antioxidant
An enzyme that's a highly potent antioxidant and skin soother. It protects cells from oxidative damage and supports functionality of other antioxidants.

Madecassoside

Hyperpigmentation Anti-Redness + Sensitivity Anti-Wrinkle + Laxity Antioxidant
From the Centella asiatica plant, this calming soother promotes smooth skin while mitigating visible redness. It also reduces itching and burning sensations.

Hydration Complex

Hydrating
A sophisticated complex of tack-free sugar-based hydrators that instantly plump, boost skin's water stores, and shield against dehydration.

Prebiotic Green Microalgae

Anti-Redness + Sensitivity Anti-Wrinkle + Laxity Antioxidant Acne-Prone
A blend of microalgae barrier polysaccharides upcycled fromย Haematococcus pluvialis waste. Prebiotic activity brings a balanced skin state and growth-factor-like performance supports wound healing.

Palmitoyl Tripeptide-38

Anti-Wrinkle + Laxity Hydrating
Skin-mimicking peptide that stimulates six major skin components (collagen I, III, IV, fibronectin, hyaluronic acid, and laminin 5) to noticeably smooth fine lines, support healthy collagen stores, and boost elasticity.
Full Ingredients List (INCI)

Aqua, Ascorbic Acid, Ascorbyl Tetraisopalmitate, Dimethyl Isosorbide, Glycereth-26, Glyceryl Oleate Citrate, PEG/PPG-14/7 Dimethyl Ether, Propanediol, Methyl Methacrylate/Glycol Dimethacrylate Crosspolymer, Undecane, Maltodextrin, Ectoin, Ethyl Oleate, gallic acid (fermented), Diglucosyl Gallic Acid, 4-Butylresorcinol, Oryzanol, Xylitylglucoside, Sodium Lactate, Superoxide Dismutase, Glycerin, Palmitoyl Tripeptide-38, Tremella Fuciformis (Snow Mushroom) Polysaccharide, Madecassoside, Hydroxypropyl Starch Phosphate, Chlorella Vulgaris (Microalgae) Extract, Anhydroxylitol, Triolein, Glyceryl Dioleate, Tridecane, Tocopherol, Xylitol, Polyacrylate Crosspolymer-6, Polyglyceryl-10 Laurate, Caprylic/Capric Triglyceride, Hydroxyacetophenone, Hydroxypropyl Cyclodextrin, Propyl Gallate, Lactic Acid, Disodium EDTA, Phenoxyethanol, Ethylhexylglycerin, Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate, Sodium Metabisulfite, Sodium Gluconate, Citric Acid

We are dedicated to providing the most innovative, functional formulations possible and ingredient lists are occasionally updated to reflect this.

How To Use

The Ritual

Use within 6 months of receipt to ensure maximum efficacy.
Apply 2-4 pumps of C-Shield to freshly cleansed skin in the morning. Gently massage into the face, neck, and eye contour until fully absorbed. If desired, follow with a moisturising layer such as Beam Me Up or Night Shift. Complete your routine with a broad-spectrum sunscreen.
While optimised for morning use, C-Shield may also be applied at night to intensify brightening results.
For best results, use daily and minimise sun exposure during treatment.

FAQ

+ [FAQ-01] Is C-Shield a vitamin C serum or a hyperpigmentation treatment?

C-Shield is both. It combines the brightening power of pure ascorbic acid with potent hyperpigmentation-correcting actives. This dual-action approach ensures comprehensive care for uneven tone, dark spots, and overall skin radiance.

+ [FAQ-02] How does C-Shield target pigmentation?

C-Shield combines pure ascorbic acid with potent brightening actives like Diglucosyl Gallic Acid and 4-butylresorcinol. Ascorbic acid delivers powerful antioxidant protection, promoting collagen synthesis and skin renewal. Gallic acid derivatives work by minimising visible pigmentation and refining texture, while 4-butylresorcinol effectively interrupts melanin synthesis for enhanced clarity. This synergistic combination targets multiple pathways, helping to visibly reduce dark spots, post-inflammatory marks, and uneven tone for a brighter, more radiant complexion.

+ [FAQ-03] How long will it take to see results?

Brightening effects and improved radiance may be noticeable within 2-4 weeks, while significant reductions in the appearance of hyperpigmentation and redness typically occur after consistent use for 8-12 weeks.

+ [FAQ-04] Can I use C-Shield with other actives?

Yes, C-Shield is formulated to work well with virtually any other actives. For sensitive skin, care should be taken when combining with strong exfoliants or retinoids to minimise the potential for irritation.

+ [FAQ-05] Is C-Shield suitable for sensitive skin?

Absolutely. C-Shield is formulated with potent active ingredients balanced by soothing actives like madecassoside and ectoin. These ingredients help calm irritation and support the skin barrier, making the serum suitable for sensitive skin while maintaining its efficacy in brightening and refining skin tone.

+ [FAQ-06] Can I use C-Shield at night?

Yes. For stubborn pigmentation, we recommend using C-Shield both morning and night.ย While C-Shield is most beneficial during the day due to its antioxidant protection, using it at night will boost brightening effects.

+ [FAQ-07] Can I use C-Shield around my eyes?

Yes, C-Shield is gentle enough to be used around the eyes. Its brightening benefits help target uneven tone and minimise the appearance of dark circles, leaving the eye area looking refreshed and radiant. Avoid direct contact with the eyes.

+ [FAQ-08] Will C-Shield help with redness?

Yes, C-Shield combines advanced brightening actives, including Diglucosyl Gallic Acid and fermented gallic acid, to address visible redness and uneven tone. These ingredients work alongside soothing actives like madecassoside and ectoin to calm the skin, reduce blotchiness, and support a balanced complexion over time.

+ [FAQ-09] Can C-Shield be used on acne-prone skin?

Yes, C-Shieldโ€™s lightweight, non-comedogenic formula is designed to suit all skin types, including acne-prone skin. The inclusion of soothing actives like madecassoside helps calm redness associated with blemishes, while vitamin C supports post-inflammatory recovery.

+ [FAQ-10] Does C-Shield contain fragrance?

No, C-Shield is free from added fragrance to ensure it is suitable for all skin types, including sensitive skin. The potent actives do provide a slight scent to the formula, but it is not overpowering and does not linger.

+ [FAQ-11] What sunscreen should I pair with C-Shield?

Any sunscreen you like. We recommend using a broad-spectrum SPF 30 or higher to maximise the protective benefits of C-Shield during the day.

Reviews

4.90 out of 5
based on 30 reports
+ View Rating Breakdown
5
27
4
3
3
0
2
0
1
0
1-3 of 30 reviews
  1. Report 01
    I really love the difference C-Shield is making to my 52 year-old skin! I've also added in the Night Shift and can see more visible luminosity, hydration, and diminishing of brown spots using both these products.
    Image #1 from Helen H.
    (11) (0)
    Helen H. ยท Verified
  2. Report 02
    C-Shield really lightened up my hyperpigmentation within a couple of weeks and caused no irritation or stinging. Itโ€™s also very hydrating! So far Iโ€™ve tried Ctrl Z, Night Shift, and C-Shield, all of them have given me great results. Ive...
    (3) (0)
    tala.k.farah ยท Verified
  3. Report 03
    Love love love this vitamin C. I love no stinging at all. goes on so nicely, and has a very subtle smell (no hot dog smell haha). can definitely see the difference in my skin after using this for 1...
    (2) (0)
    Alexandra ยท Verified
Add a review
You must be logged in to post a review Log In

The Range

8 multifunctional products built for results.

Customise for you

< >

The cloud-like texture of this oil-cleanser and gel-cleanser hybrid eradicates grime while infusing soothing, clarifying actives. With each cleanse, pores become less evident, blemishes are refined, and irritation is comforted for clear, nourished, perfectly prepped skin.

View Product →
cloud melt
AM + PM

cloud melt

Hybrid Treatment Cleanser

A leave-in treatment to support all aspects of optimal scalp health. Exfoliates flakiness, decongests follicle build-up, soothes dryness and itchiness, supports the look of denser hair and the strength of the hair shaft, and encourages microcirculation to nourish the scalp.

View Product →
stimpack
AM or PM

stimpack

Complete Scalp Serum

A calming treatment to firm, boost suppleness, and soothe skin stress. Barrier-strengtheners target signs of inflammatory response, such as redness, blemishes, tightness, and sensitivity. Energising actives, antioxidants, and targeted peptides smooth, brighten, and depuff tired skin for a comforted feel and lifted, luminous look.

View Product →
beam me up
AM

beam me up

Stress Repair Antioxidant Treatment

A resilience-first brightening treatment powered by DNA-repair enzymes. A holistic complex revitalises skin while targeted actives brighten uneven tone, rebalance oiliness, and diminish the look of blemishes without compromising barrier integrity. Over time, tolerance builds, reactivity eases, texture smooths, and skin looks calm, even, and luminous.

View Product →
night shift
PM

night shift

Resilience-Building Brightening Treatment

An industry-first, purpose-built short-contact retinoid treatment engineered to deliver intensive results without irritation. An instantaneous delivery system leverages high-potency retinal with synergistic brightening and restorative support to address lines, blemishes, and discolouration. Skin looks clearer, more radiant, and wholly revitalised.

View Product →
88mph
AM or PM

88mph

Retinal Short Contact Remodelling Balm

An advanced resurfacing treatment to dynamically recondition skinโ€™s appearance. An intelligent blend of direct acid, enzyme, and non-acid exfoliants softens visible blemishes, hyperpigmented spots, pores, and texture. Brightening and firming actives amplify a supple, smooth radiance in newly emerging skin for unmatched facial-like results overnight.

View Product →
ctrl z
PM

ctrl z

Multi-Corrective Exfoliating Serum

An immediately smoothing eye serum concentrate loaded with 70% active technologies. Bio-optimised to target the appearance of all primary eye concerns synchronously: fine lines, dehydration, puffiness, dark circles, sallowness, thinning skin, and drooping lids.

View Product →
the anomaly
AM + PM

the anomaly

Eye Matrix Concentrate

TAGGED @CIPHERSKINCARE