By Wishtrend, Pure Vitamin C 21.5 Advanced Serum

Pure Vitamin C 21.5 Advanced Serum

Name: Pure Vitamin C 21.5 Advanced Serum
Brand: By Wishtrend

Step 4: Serum

from €29.00

A high-strength 21.5 percent pure L-ascorbic acid serum that targets dullness, dark spots and uneven tone for visibly brighter, more even skin.

Skin types: Normal, Combination, Oily

Targets: Dullness, Dark Spots, Uneven Tone, Post-Acne Marks

Pros

High 21.5 percent vitamin C concentration for visible brightening
Lightweight, non-sticky texture absorbs fast
Fades dark spots and post-acne marks over time

Cons

Initial tingling is normal and can feel intense for sensitive skin
Best introduced gradually, 2 to 3 times a week
Must be paired with SPF every morning

Where to buy

See on Stylevana

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Editorial verdict

By Wishtrend Pure Vitamin C 21.5 Advanced Serum is a potent, direct-acting antioxidant treatment formulated to target persistent hyperpigmentation, post-acne marks, and overall dullness. Grounded in a base of sea buckthorn water rather than plain water, it delivers pure L-ascorbic acid alongside soothing centella asiatica and panthenol. The formula is best suited for resilient, oily, combination, or normal skin types that are already acclimated to active acids. Users should store the bottle in a cool, dark environment or refrigerator to prevent premature oxidation. When introduced gradually and paired with consistent daily sun protection, it functions as a targeted brightening treatment.

Normal skin

Oily skin

Combination skin

Dullness

Dark Spots

Hyperpigmentation

Uneven Skin Tone

What's good and what's not

Users seek out this serum for intensive brightening and fading stubborn hyperpigmentation due to its high concentration of L-ascorbic acid. The formula pairs potent pure vitamin C with soothing botanicals like sea buckthorn water and panthenol to support the skin barrier. Because of its potency, it requires careful storage and steady acclimatization to avoid irritation.

The good

Potent hyperpigmentation targeting

A concentrated 21.5% L-ascorbic acid base actively inhibits melanin synthesis and accelerates cellular turnover to fade post-inflammatory hyperpigmentation and sun spots.

High antioxidant protection

Hippophae rhamnoides (sea buckthorn) water provides an antioxidant-rich foundation that complements pure vitamin C to enhance overall luminosity.

Barrier-supporting co-actives

The inclusion of panthenol, beta-glucan, and centella asiatica extract helps offset the drying and sensitizing effects typical of strong acid solutions.

Fragrance- and alcohol-free formula

The formula avoids added synthetic perfumes and volatile alcohols, keeping the ingredient list focused on active performance.

Reach for it if

Experienced acid users with resilient skin looking to visibly brighten persistent dark spots and post-acne marks.

Skip it if

Those with highly reactive, sensitive, or eczema-prone skin, or individuals with compromised moisture barriers.

What to expect

Noticeable reduction in the appearance of dark spots over 4 to 8 weeks
Brighter and more radiant overall complexion
Smoother, more refined skin texture

Don't expect

Instant dark spot removal overnight
Long shelf life at warm room temperatures due to ascorbic acid oxidation
Gentle non-tingling experience for compromised barriers

Deep facts

Texture: lightweight watery serum
Finish: slightly tacky initially, dries to natural finish
Scent: unscented, slight metallic or citrus undertone from ascorbic acid
Packaging: Dark amber glass dropper bottle to minimize light degradation
Value: Offering a clinical-grade 21.5% concentration of pure ascorbic acid supported by sea buckthorn water, it provides high-potency antioxidant performance at an accessible price point compared to Western luxury equivalents.
Lasts: ~8 weeks
Time to results: Luminosity within 1 to 2 weeks; hyperpigmentation fading within 4 to 8 weeks
Usage frequency: 2 to 3 times weekly, building up to daily use as tolerated
Routine position: After toner, before moisturizer (AM or PM)

Fragrance freeEssential oil freeAlcohol free

Layering tips

Apply after cleansing and toning, ideally before heavier creams. Avoid using in the same routine as strong exfoliating acids (AHAs/BHAs) or retinoids to minimize irritation, and always follow with sunscreen during the day.

Flagged ingredients

Ascorbic Acid (Potential Irritant)
High concentration of pure vitamin C (21.5%) with a low pH can cause stinging, tingling, or flushing, especially on broken or sensitive skin.

Full INCI list

Hippophae Rhamnoides Water, Ascorbic Acid, Glycerin, Propanediol, Panthenol, Cyclomethicone, PEG-60 Hydrogenated Castor Oil, Centella Asiatica Extract, Polysorbate 80, Beta-Glucan, Lecithin, Adenosine, 1,2-Hexanediol, Caprylyl Glycol, Carbomer, Arginine

How to use

Apply 2 to 3 drops to clean, dry skin in the morning before moisturizer. Start with 2 to 3 times a week and build up as your skin adjusts. Always follow with a broad-spectrum SPF during the day.

Questions people ask about Pure Vitamin C 21.5 Advanced Serum

What is Pure Vitamin C 21.5 Advanced Serum and what does it do?

Is Pure Vitamin C 21.5 Advanced Serum good for normal, oily and combination skin?

Yes, it tends to suit normal, oily and combination skin. Experienced acid users with resilient skin looking to visibly brighten persistent dark spots and post-acne marks.

Who should avoid Pure Vitamin C 21.5 Advanced Serum?

Those with highly reactive, sensitive, or eczema-prone skin, or individuals with compromised moisture barriers.

How often should I use Pure Vitamin C 21.5 Advanced Serum?

2 to 3 times weekly, building up to daily use as tolerated

How long until Pure Vitamin C 21.5 Advanced Serum shows results?

Luminosity within 1 to 2 weeks; hyperpigmentation fading within 4 to 8 weeks

What can I layer Pure Vitamin C 21.5 Advanced Serum with?

Is Pure Vitamin C 21.5 Advanced Serum worth the price?

Offering a clinical-grade 21.5% concentration of pure ascorbic acid supported by sea buckthorn water, it provides high-potency antioxidant performance at an accessible price point compared to Western luxury equivalents.

Is Pure Vitamin C 21.5 Advanced Serum suitable for sensitive skin?

Pure Vitamin C 21.5 Advanced Serum is alcohol-free, which makes it a safer pick for reactive or barrier-impaired skin. Always patch test before using it on the full face.