NEOVA SmartSkincare C 20+ Antioxidant Serum in a white dropper bottle. The front label specifies a potent formula of 20% L-Ascorbic Acid, 1% Vitamin E, 0.5% Ferulic Acid, and 0.5% AHA and categorizes it using a blue "Prevention" label. The bottle is topped with a brushed silver collar and a white rubber dropper bulb, sitting on a clean white surface against a bright, minimalist background.

NEOVA C 20+ serum on a clear acrylic square. There is one large, circular drop and two smaller droplets to the right in the top-down view. The liquid is transparent with a very faint, pale yellow tint and a smooth, water-like viscosity.

NEOVA C 20+ Antioxidant Serum as step two in a four-step clinical skin care routine. The diagram shows: 1. Cleanse with a clear sparkling gel, 2. Treat with a pale yellow-green serum (pair with DNA Total Repair), 3. Moisturize with a thick white cream, 4. Protect with a tan-tinted SPF.

NEOVA C 20+ Antioxidant Serum educational image showing clinical results before and after treatment on the face. Black text reads '22% increase in luminosity & radiance after 4 weeks' on a light background.

NEOVA C 20+ Antioxidant Serum educational image showing clinical before and after results with '20% improvement in skin tone after 8 weeks' on a gray background.

NEOVA C 20+ Serum – customer review card: 5-star customer review highlighting brighter, more radiant-looking skin and improved overall glow.

C 20+

$130.00

Antioxidant Serum with L-Ascorbic Acid, Vitamin E, Ferulic Acid, AHA | 1.0 oz.

(4.7)

Antioxidant

Hyperpigmentation

Lines and Wrinkles

Serum

Formulated with a high concentration of vitamin C, the NEOVA C 20+ antioxidant serum helps brighten the skin while defending against environmental stressors. It supports a more even-looking tone and improves the appearance of fine lines and dullness. With consistent use, skin appears more radiant, protected, and revitalized.

What it's formulated to do

• All-new ingredient ratio of 20% Vitamin C, 1% Vitamin E, 0.5% Ferulic Acid, and 0.5% Natural AHA's delivers more overall skin texture and tone, fine line-smoothing, brightening, and re-texturizing power.
• Less than 20% water content, which makes it a more stable formula, while decreasing the traditional Vitamin C “scent.”
• Optimal 3.5 pH controls reactive sensitivity.
• The built-in reservoir of natural Alpha Hydroxy Acids strengthens the endurance of companion antioxidants and skillfully protects skin DNA.
• Weightless in texture.

TEXTURE

Light serum, pale yellow in color, absorbs quickly and completely, leaving no after-residue.

CLINICAL STUDY

• 22% Luminosity and Radiance Increase in 4 Weeks*
• 20% Skin Tone Evenness Improvement at 8 Weeks*
• 94.7% Showed Increased in Luminosity*
• 42.1% Showed Improvement in Tone*
• 31.6% Showed Significant Improvement in Fine Lines & Wrinkles*

*Expert dermatologist clinical grading validated in 8 week study conducted by an independent, FDA-approved lab.

KEY INGREDIENTS

• L-Ascorbic Acid (Vitamin C): neutralizes free radicals, protects against oxidative stress, and visibly brightens.

• Tocopherol Acetate (Vitamin E): scavenges free radicals and replenishes the skin’s protective barrier.

• Ferulic Acid: magnifies antioxidant benefits and supports vitamin C and E stability.

• Natural Alpha Hydroxy Acids: bilberry, sugar cane, orange, and lemon extracts help improve delivery, cellular turnover, and collagen support.

ALL INGREDIENTS

Propylene Glycol, Water (Aqua), Ascorbic Acid, Dimethyl Isosorbide, Triceteareth-4 Phosphate, Glycerin, Polysorbate-20, Vaccinium Myrtillus Fruit Extract, Tocopheryl Acetate, Octoxynol-9, Panthenol, Ferulic Acid, Saccharum Officinarum (Sugar Cane) Extract, Citrus Aurantium Dulcis (Orange) Fruit Extract, Citrus Limon (Lemon) Fruit Extract, Salicylic Acid, Acer Saccharum (Sugar Maple) Extract, Tetrasodium EDTA, Benzyl Alcohol, Phenoxyethanol, Ergothioneine.

APPLICATION

Apply 2 to 3 drops every morning after cleansing. Follow with Everyday Facial Fluid or Silc Sheer 2.0 broad-spectrum sunscreen.

C 20+

$130.00

KEY BENEFITS

BRIGHTENING BOOST

Improves dull, uneven tone

ANTIOXIDANT DEFENSE

Protects against free radicals

ANTI-AGING SUPPORT

Helps reduce fine lines

FIRMING EFFECT

Supports smoother skin appearance

HOW TO USE C 20+

1. Apply 2–3 drops to clean skin every morning after cleansing.
2. Gently press into face and neck until absorbed
3. Follow with moisturizer.
4. Finish with broad-spectrum sunscreen during the day.
5. Use C 20+ daily for best results.

NEOVA C 20+ Serum – application: Close-up of cheek showing vitamin C serum being applied with a glass dropper to brighten skin tone, improve radiance, and reduce the appearance of uneven pigmentation.

Before

After

SEE THE RESULTS

20% IMPROVEMENT IN SKIN TONE IN 8 WEEKS

C 20+ helps brighten and even the complexion, reducing the appearance of dullness and uneven tone with continued use.

Slide to compare real before and after results.

Protocol: C 20+ Antioxidant Serum
*Expert dermatologist clinical grading validated in 8-week study conducted by an independent, FDA approved lab.

STEP 1: CLEANSE

Gently purify your skin.

Cu3 Gentle Cleanser

$45.00

★★★★★

5.0

STEP 2: TREAT

Target visible concerns.

Illuminating Eye Serum

$75.00

★★★★★

4.3

STEP 3: MOISTURIZE

Support your skin's barrier.

Night Therapy

$125.00

★★★★★

4.6

STEP 4: PROTECT

Defend daily against UVs.

Silc Sheer 2.0

$69.00

★★★★★

4.9

FAQs About C 20+

How long does C 20+ remain effective after opening?

Unopened C 20+ products typically remain stable for up to 3 years from the date of manufacture when stored properly. Once opened, it is best to use the product within 6 months to ensure optimal potency and performance, particularly for maintaining vitamin C stability and antioxidant effectiveness. For safety and effectiveness, be sure to dispense products in a sanitary manner.

How is C 20+ different from other vitamin C serums on the market?

C 20+ is formulated with a higher concentration of 20% L-ascorbic acid, compared to many leading vitamin C serums that typically contain around 10–15%. This higher concentration is designed to deliver more intensive antioxidant support for the skin.

It also includes tocopherol acetate (vitamin E derivative), which offers enhanced stability and improved resistance to UV degradation compared to standard vitamin E forms. In addition, C 20+ is formulated with natural alpha hydroxy acids (AHAs) that help enhance vitamin C penetration and overall effectiveness.

Unlike many vitamin C products that lower pH significantly to improve absorption (which can increase irritation potential) C 20+ is also formulated at a pH of approximately 2.5, balancing potency with a more controlled level of skin tolerance for daily use.

Is C 20+ suitable for hyperpigmentation and dark spot skincare routines?

Yes. Vitamin C is widely used in routines targeting uneven tone, as it helps brighten skin and reduce the appearance of discoloration over time with consistent use.

How long should I wait after using a copper peptides mask before applying Vitamin C or exfoliating acids?

If you are using a high concentration Vitamin C serum (such as ascorbic acid) after a copper peptides mask, we recommend waiting about one hour between applications. For this reason, many people prefer using Vitamin C in the morning and copper peptides in the evening. If the Vitamin C is part of a moisturizer, this waiting period is typically not necessary.

When it comes to exfoliating acids (AHAs), they are generally used before copper peptides as part of an exfoliating step. In most routines, there is no concern when copper peptides are applied after AHA use, such as following a peel.

Fast Shipping

Orders ship within two business days. Rates are calculated at checkout.

30-Day returns

Unopened, unused items may be returned within 30 days of purchase for a refund.

Customer service

Our team is available Monday through Friday 9AM-5PM ET to assist.

C 20+

C 20+

KEY BENEFITS

BRIGHTENING BOOST

ANTIOXIDANT DEFENSE

ANTI-AGING SUPPORT

FIRMING EFFECT

HOW TO USE C 20+

20% IMPROVEMENT IN SKIN TONE IN 8 WEEKS

COMPLETE YOUR REGIMEN

STEP 1: CLEANSE

Cu3 Gentle Cleanser

STEP 2: TREAT

Illuminating Eye Serum

STEP 3: MOISTURIZE

Night Therapy

STEP 4: PROTECT

Silc Sheer 2.0

FAQs About C 20+