Protocol

Vitamin C Superserum

Name: Vitamin C Superserum
Brand: Protocol
Price: 76.00 USD
Availability: InStock

$76.00

Size: 1 oz / 30 ml

A brighter outlook for dull skin. Protocol’s Vitamin C Superserum brings together 10% pure L-ascorbic acid, vitamin E, and glycerin in a lightweight, water-based serum. Made to help brighten skin and improve uneven tone over time, it’s a worthy addition to your morning routine.

Brings brightness back to dull-looking skin
Helps reduce the appearance of dark spots and uneven tone
Supports firmer-looking skin over time
Layers easily under moisturizer and SPF

Why We Chose It

We chose this serum because it puts a well-studied ingredient to work on notable skin concerns like dullness, dark spots, and uneven skin tone. Protocol uses 10% L-ascorbic acid, with the formula’s acidity carefully adjusted to support delivery into the skin.

For men looking to get more from their morning routine, this is a straightforward addition. Pair it with Protocol’s Renewing Moisturizer and your daily SPF.

Who It Suits

For those looking to address dullness, dark spots, uneven tone, or early signs of skin aging. If your skin is sensitive or new to vitamin C, introduce it gradually rather than starting with daily use. Discontinue or decrease use if irritation occurs.

Attributes & Standards

10% L-ascorbic acid (Vitamin C)
Water-based formula with vitamin E and glycerin
pH-optimized for performance
Vegan and cruelty-free
Airless, UV-protective bottle
Designed for morning use

How to Use

After cleansing or rinsing in the morning, apply one pump while skin is still slightly damp.
Allow 1–2 minutes before applying moisturizer.
Finish with broad-spectrum SPF 30 or higher.

Introduce gradually if you are new to vitamin C. Use leave-on exfoliating acids at a different time of day.

Ingredients

Water, Witch Hazel Water, Ascorbic Acid (L), Glycerin, Tocopheryl Acetate (D-alpha), Ethanol, Vanilla Planifolia Fruit Extract, Passiflora Incarnata Fruit Extract, Xanthan Gum, Polysorbate 20, Caprylyl Glycol, Polyglyceryl-4 Caprate, Phenoxyethanol

Vitamin C Superserum

$76.00

Protocol Vitamin C Superserum FAQs

What does vitamin C do for your skin?

Vitamin C is an antioxidant that can help protect skin from free radicals generated by UV exposure and pollution. It also supports collagen production and helps reduce the appearance of dark spots, usually contributing to brighter, firmer, and more even-looking skin over time. Protocol uses 10% L-ascorbic acid, the active form of vitamin C.

What type of vitamin C does Protocol use?

Protocol uses 10% L-ascorbic acid, the active form of vitamin C. It helps brighten dull skin, improve the appearance of dark spots, and support collagen production for firmer-looking skin with consistent use.

Can I use it alongside Protocol Enzyme-Active Retinol Serum?

Yes. Use Vitamin C Superserum in the morning and Enzyme-Active Retinol Serum in the evening. Follow with moisturizer, and finish your morning routine with sunscreen. If both products are new to your routine, introduce them one at a time and increase retinal use gradually as your skin tolerates it.

Does vitamin C replace sunscreen?

No. Vitamin C provides antioxidant support, but it does not provide SPF protection. Finish your morning routine with broad-spectrum SPF 30 or higher.

How does the packaging help preserve the formula?

L-ascorbic acid is sensitive to light and oxygen. Protocol uses an airless, UV-protective bottle and a specialized bottling process to help preserve the formula during storage and use.

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Vitamin C Superserum