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Circadia Vitamin C Reversal Antioxidant Serum

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Circadia Vitamin C Reversal Antioxidant Serum

Name: Circadia Vitamin C Reversal Antioxidant Serum
Brand: Circadia
Availability: InStock

$65.00

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Circadia Vitamin C Reversal Antioxidant Serum

$65.00

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Circadia · Antioxidant Serum · AM & PM

Vitamin C Reversal Antioxidant Serum

Stabilized Vitamin C + Sodium Hyaluronate + Panthenol B5 — brightening, firming, and soothing in one lightweight serum.

Brightens, firms, and protects the skin with a gentle stabilized form of Vitamin C, deeply hydrating actives, and soothing regenerative ingredients. Safe for all skin types, including sensitive. 0.5 oz / 15 mL.

Stabilized Vitamin CSodium HyaluronatePanthenol B5Sensitive Skin SafeAll Skin Types0.5 oz / 15 mL

MAPStabilized Vitamin C

AM/PMTwice Daily

AllSkin Types

3Key Actives

Antioxidant Brightening Serum

The Gentler Vitamin C Serum That
Works for Every Skin Type.

Vitamin C Reversal Antioxidant Serum is Circadia's lightweight, age-defying serum designed to brighten, firm, and protect — without the irritation that comes with more aggressive forms of Vitamin C. Magnesium Ascorbyl Phosphate (MAP) is a biologically active, water-soluble, stabilized form of Vitamin C that converts to natural acid Vitamin C in the skin. It inhibits collagen breakdown, boosts collagen synthesis, neutralizes free radicals, reduces the appearance of hyperpigmentation, and brightens dull and uneven skin tone — with the same efficacy as other forms of C but effective in significantly lower concentrations and safe for dry and sensitive skin. Its slower release provides sustained brightening and antioxidant benefits throughout the day. Sodium Hyaluronate — the purest salt form of hyaluronic acid — binds, moisturizes, and soothes, holding moisture to provide maximum hydration and plumping benefits. Panthenol (Provitamin B5) is regenerative and soothing, softening the skin, accelerating healing of damaged areas, reducing inflammation and irritation, and providing lasting humectant hydration. Together, these three actives deliver a perfectly balanced, gentle serum that addresses aging, dullness, uneven tone, and sensitivity in a single daily step.

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Stabilized Vitamin C

MAP — brightens, firms, prevents collagen loss

💧

Sodium Hyaluronate

Pure HA — binds moisture for deep plumping hydration

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Panthenol B5

Regenerative & soothing — soothes and heals

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Sensitive Skin Safe

Gentle MAP — suitable for dry and reactive skin

Key Actives

The Science Behind the Serum

Stabilized Vitamin C

Magnesium Ascorbyl Phosphate

A biologically active, water-soluble, stabilized form of Vitamin C. Converts to natural acid Vitamin C in the skin. Inhibits collagen breakdown, boosts collagen synthesis, neutralizes free radicals, and brightens. Gentle enough for sensitive skin with sustained efficacy.

Humectant

Sodium Hyaluronate

The purest salt form of hyaluronic acid. Binds, moisturizes, and soothes the skin, holding up to 1,000 times its weight in water to provide maximum hydration and visible plumping benefits for dehydrated skin.

Regenerative

Panthenol

Provitamin B5 — regenerative and soothing. Softens the skin, accelerates healing of damaged or irritated areas, reduces inflammation, and provides lasting humectant hydration that supports a healthy, resilient skin barrier.

Benefits

What It Does

Brightening

Stabilized Vitamin C neutralizes free radicals, reduces hyperpigmentation, and brightens dull, uneven skin tone.

Firmness

Prevents collagen breakdown and boosts collagen synthesis for visibly firmer, more resilient skin over time.

Hydration

Deeply hydrates with Sodium Hyaluronate and Panthenol while soothing irritation and supporting skin healing.

Directions

How to Apply

Morning and evening after cleansing. Always follow with SPF in the morning.

1

Cleanse

Cleanse skin thoroughly morning and evening. Pat dry or leave slightly damp for better serum absorption.

2

Apply Serum

Apply a small amount to fingertips and smooth gently over the face and neck. Avoid contact with eyes. Allow to absorb before layering moisturizer.

3

Morning: Follow with SPF

In the morning, always layer with your moisturizer and a broad-spectrum SPF. Vitamin C enhances UV protection when combined with daily sunscreen.

Formulation

Ingredients

Key Actives

Magnesium Ascorbyl Phosphate (Stabilized Vitamin C) — biologically active, water-soluble, stable form of Vitamin C; converts to natural acid Vitamin C in the skin; inhibits collagen breakdown; boosts collagen synthesis; potent antioxidant; brightens and evens skin tone; safe for sensitive skin.
Sodium Hyaluronate — pure salt form of hyaluronic acid; binds, moisturizes, and soothes; provides maximum hydration and plumping benefits.
Panthenol (Provitamin B5) — regenerative and soothing; softens skin, accelerates healing, reduces irritation, and provides lasting humectant hydration.

Full Ingredient List

Aqua/Water, Magnesium Ascorbyl Phosphate, Pentylene Glycol, Sodium Hyaluronate, Panthenol, Caprylyl Glycol, Phenoxyethanol, Hexylene Glycol.

Specifications

Product Details

Brand	Circadia by Dr. Pugliese
Size	0.5 oz / 15 mL
Product Type	Antioxidant Brightening Serum
Vitamin C Form	Magnesium Ascorbyl Phosphate (MAP) — stabilized, gentle, water-soluble
Use	Morning and evening after cleansing; follow with moisturizer and SPF in AM
Application	Small amount smoothed over face and neck; avoid eye area
Skin Types	All Skin Types · Aging · Dull / Uneven Tone · Sensitive

FAQ

Common Questions

Everything you need to know about Vitamin C Reversal Antioxidant Serum.

What is Circadia Vitamin C Reversal Antioxidant Serum?

A powerful age-defying serum with stabilized Vitamin C (MAP) to boost firmness, prevent collagen breakdown, and neutralize free radicals. Also contains Sodium Hyaluronate for deep hydration and Panthenol (B5) to soothe and regenerate. Suitable for all skin types including sensitive.

What is Magnesium Ascorbyl Phosphate and how is it different from regular Vitamin C?

Magnesium Ascorbyl Phosphate (MAP) is a biologically active, water-soluble, stabilized form of Vitamin C. Unlike L-ascorbic acid, MAP is gentler and more stable, effective in lower concentrations, and safe for dry and sensitive skin. It converts to natural acid Vitamin C in the skin and provides sustained brightening and antioxidant benefits.

What does Vitamin C do for skin?

Vitamin C inhibits collagen breakdown, boosts collagen synthesis, neutralizes free radicals, improves tissue elasticity, reduces the appearance of hyperpigmentation, and brightens dull and uneven skin tone. It is one of the most well-researched antioxidants in skincare.

What does Sodium Hyaluronate do in this serum?

Sodium Hyaluronate is the purest salt form of hyaluronic acid. It binds, moisturizes, and soothes the skin, holding up to 1,000 times its weight in water to provide maximum hydration and plumping benefits.

What does Panthenol (Provitamin B5) do?

Panthenol is regenerative and soothing. It softens the skin, supports healing of damaged or irritated areas, reduces inflammation, and provides lasting humectant hydration by attracting and retaining moisture.

How do I use Circadia Vitamin C Reversal Serum?

Apply a small amount morning and evening after cleansing. Smooth several drops over face and neck and allow to absorb. Avoid contact with eyes. In the morning, follow with moisturizer and a broad-spectrum SPF.

Is this serum suitable for sensitive skin?

Yes — Magnesium Ascorbyl Phosphate is one of the gentlest, most stable forms of Vitamin C, specifically safe for dry and sensitive skin. Panthenol further soothes and protects reactive skin, making this one of the most universally tolerable Vitamin C serums available.

Ideal For

Who Is This For?

All Skin TypesAging SkinDull SkinUneven Skin ToneSensitive SkinHyperpigmentationCollagen SupportDaily Antioxidant Protection

For external use only. Apply to face and neck. Avoid contact with eyes. If irritation occurs, discontinue use. Keep out of reach of children. Always follow with broad-spectrum SPF in the morning when using Vitamin C. Circadia products are developed for professional skincare use. Sold exclusively through authorized Circadia retailers. Auréa Beauty (myaurea.beauty) is an authorized Circadia professional skincare retailer.

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Easy 30-Day Returns

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Auréa Beauty stands for more than visible results—we stand for responsibility. We believe in derm-developed, cruelty-free, and sustainably sourced formulas.

✔ We're proudly woman-owned: created with heart, honesty, and intention.

✔ Real, medical-grade skincare and haircare you can actually trust—without fluff and false promises.

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Questions? We've got you!

Shipping & Returns

We ship within the US only.

1. Economy Shipping costs $11.99 and takes 5–8 business days.

2. Express Shipping costs $24.99 and takes 2–3 business days.

Yes, we accept returns within 30 days. Terms and conditions apply, see them here.

We accept a variety of payment methods including major credit cards (Visa, Mastercard, etc.), plus alternative payment options like Apple Pay, Shop Pay, and PayPal.

Once your order is placed and shipped, you will receive a confirmation email. Use the tracking information provided to follow delivery.

If you're missing tracking or have any concerns, please reach out to our customer support.

Products & Quality

Auréa Beauty is a proudly woman-owned online store offering premium, medical-grade skincare and advanced beauty devices.

All products are guaranteed authentic, dermatologist-recommended, sourced directly from trusted brands like Bio-Therapeutic, Circadia, GlyMed Plus, and TiZO.