Forms of vitamin C
What this measured
Immediate, stabilized and time-release — covering delivery that any single form leaves incomplete.
Foundational
1 / 4Topical · Antioxidant Defense
Aurora Vitamin C Serum
Three forms of vitamin C, because one is never enough.
Not sure this is the one? Find your formulation →
$34.00
Most vitamin C serums pick one form and hope. This one carries three — pure L-ascorbic acid for immediate activity, magnesium ascorbyl phosphate for stability, and 3-glyceryl ascorbate for gradual release through the day.
Vitamin C is the most rigorously studied antioxidant in dermatology. Applied topically over twelve weeks it produces statistically significant improvement in wrinkling, measured by optical profilometry and blinded clinical assessment. Ferulic acid holds the whole system stable, and calendula and chamomile keep it comfortable enough to use every single morning.
Vitamin C is the most rigorously studied antioxidant in dermatology. Applied topically over twelve weeks it produces statistically significant improvement in wrinkling, measured by optical profilometry and blinded clinical assessment. Ferulic acid holds the whole system stable, and calendula and chamomile keep it comfortable enough to use every single morning.
30 days, opened or unopened — nothing to send back · Free shipping over $75 · Ships in 1–3 business days
Forms of vitamin C
To measured change
Photoprotection
- Three forms of vitamin C — immediate, stabilized and time-release
- Ferulic acid for stability and extended photoprotection
- Calendula, chamomile and rice extracts to keep it comfortable daily
- Vegan, cruelty-free, and free from parabens, silicones and sulfates
- Made in the USA
Apply a small amount to clean, dry skin each morning. Massage gently until fully absorbed.
Follow with moisturizer and broad-spectrum SPF.
Follow with moisturizer and broad-spectrum SPF.
Water, Propanediol, L-Ascorbic Acid, Sorbitan Oleate Decylglucoside Crosspolymer, Glycerin, Oryza Sativa (Rice) Extract, Calendula Officinalis Flower Extract, Chamomilla Recutita (Matricaria) Flower Extract, 3-Glyceryl Ascorbate, Magnesium Ascorbyl Phosphate, Artocarpus Heterophyllus Fruit Extract, Imperata Cylindrica Root Extract, Ferulic Acid, Xanthan Gum, Phenoxyethanol, Ethylhexylglycerin, Fragrance, Sodium Gluconate.
Vegan · Cruelty-free · Made in the USA.
Vegan · Cruelty-free · Made in the USA.
- Parabens
- Phthalates
- Silicones
- Sulfates
- Mineral oil
- Alcohol
- Hormones
- Gluten
- Lactose
Every formulation carries a certificate of analysis, published in full on our certificates page. Coverage is matched to the product: microbiological profiles on nearly every formulation, heavy-metal limits for arsenic, cadmium, mercury and lead on ingestibles — with measured ICP-MS results where quantified — identity by FT-IR where run, physicochemical verification on every topical, and measured potency where an active assay is performed. Each certificate states its own specifications and results.
No formulation joins the collection without one. Read this product's certificate →
Complimentary shipping on orders over $75. Standard delivery 2–5 business days within the continental United States; express options at checkout.
Thirty-day money-back guarantee, opened or unopened. If a formulation is not working for you, contact concierge@omniviawellness.com — one opened container per formulation is refunded without sending anything back, and unopened products are refunded in full on return.
For external use only. Avoid contact with eyes. Discontinue if irritation persists.
Contains fragrance. Patch test on the inner forearm for three consecutive days if you have known sensitivity, rosacea, or a compromised barrier.
Vitamin C is an antioxidant, not a photosensitizer — it works alongside sunscreen, not instead of it. Apply broad-spectrum SPF every morning as the final step of your routine.
Contains fragrance. Patch test on the inner forearm for three consecutive days if you have known sensitivity, rosacea, or a compromised barrier.
Vitamin C is an antioxidant, not a photosensitizer — it works alongside sunscreen, not instead of it. Apply broad-spectrum SPF every morning as the final step of your routine.
The Evidence
What the research measured.
Vitamin C works through a mechanism that is understood rather than guessed at — and it is one of the few actives where the human evidence has been replicated for decades.
To measured change1
What this measured
The point at which a randomized, vehicle-controlled trial recorded significant wrinkle improvement on optical profilometry.
Photoprotection4
What this measured
Fold-increase in UV photoprotection measured when ferulic acid was added to a vitamin C and E solution, versus untreated skin.
Mechanism
How it works, at the level that matters.
Vitamin C is a required cofactor for prolyl and lysyl hydroxylase, the two enzymes that stabilize the collagen triple helix. Without enough of it, collagen is synthesized but never folds into a structure that holds.
It also donates electrons directly, quenching the free radicals ultraviolet light generates before they can fragment the collagen you already have. And it interrupts melanogenesis by reducing dopaquinone back to DOPA — which is why consistent use evens tone as much as it firms texture.
The three-form approach solves the oldest problem in vitamin C chemistry. Pure L-ascorbic acid is the most active and the least stable. Magnesium ascorbyl phosphate is pH-neutral and survives where ascorbic acid degrades. 3-glyceryl ascorbate converts gradually in the skin. Together they cover immediate delivery and sustained availability, and ferulic acid protects all three from oxidizing in the bottle.
It also donates electrons directly, quenching the free radicals ultraviolet light generates before they can fragment the collagen you already have. And it interrupts melanogenesis by reducing dopaquinone back to DOPA — which is why consistent use evens tone as much as it firms texture.
The three-form approach solves the oldest problem in vitamin C chemistry. Pure L-ascorbic acid is the most active and the least stable. Magnesium ascorbyl phosphate is pH-neutral and survives where ascorbic acid degrades. 3-glyceryl ascorbate converts gradually in the skin. Together they cover immediate delivery and sustained availability, and ferulic acid protects all three from oxidizing in the bottle.
Figures describe research on individual ingredients rather than on this finished product. Sources and the full disclosure are at the foot of the page.
The Formulation Story
Why we made
this one.
Almost every serum on the shelf claims vitamin C. Very few tell you which form, and form is most of the story.
L-ascorbic acid is what the research used, but it is unstable enough that a poorly built serum is inert within weeks. The derivatives are stable but need converting in the skin. Choosing one means accepting its weakness.
So this formulation does not choose. Three forms, ferulic acid to hold them together, and a base of rice, calendula and chamomile extracts that makes a low-pH serum something you will actually reach for at seven in the morning.
L-ascorbic acid is what the research used, but it is unstable enough that a poorly built serum is inert within weeks. The derivatives are stable but need converting in the skin. Choosing one means accepting its weakness.
So this formulation does not choose. Three forms, ferulic acid to hold them together, and a base of rice, calendula and chamomile extracts that makes a low-pH serum something you will actually reach for at seven in the morning.
Formulated for
Anyone starting a serious topical routine, and anyone whose concerns are dullness, uneven tone, early photoaging or post-inflammatory marks. It is the foundation of the Omnivia morning ritual and layers directly under the Ageless Retinol Moisturizer.
The Formulation
Every active, named.
Every active, named. Consumable doses are printed to the milligram on the label. For topicals, actives are listed in order of concentration — and where a number cannot be independently verified, we do not print one.
Serving size
3–4 drops, morning
1 fl oz / 30 ml
L-Ascorbic AcidPure vitamin C
The unesterified, bioactive form — the molecule the dermatological research used.
Magnesium Ascorbyl PhosphateStabilized vitamin C
A pH-neutral derivative that stays stable where pure ascorbic acid degrades. Works alongside, not instead.
3-Glyceryl AscorbateTime-release vitamin C
A third form, converted gradually in the skin, extending delivery through the day.
Ferulic AcidFerula foetida derived
Plant polyphenol that stabilizes vitamin C against oxidation and extends its photoprotective effect.
Calendula & ChamomileOfficinalis · Recutita
Botanical extracts that calm the mild sting a low-pH vitamin C base can produce.
Rice & Jackfruit ExtractOryza sativa · Artocarpus
Traditional botanical brighteners, carried in a hydrating propanediol base.
The Protocol
How to use it, and what to expect.
Consistency is the variable that decides outcomes. Build the habit first; the biology follows on its own schedule.
1
Morning, on clean skin
A small amount to a dry face and neck before anything else. Vitamin C works best when it reaches skin first, undiluted by an emollient layer.
2
Always follow with SPF
Antioxidants and sunscreen are complementary, not interchangeable. Vitamin C neutralizes what gets past the filter. It does not replace it.
3
Build up gradually
Every other morning for the first two weeks. A low-pH serum tingles briefly on application; persistent stinging means slow down.
Week 1–2
Tolerance settles
The initial tingle fades as the barrier adapts. Nothing visible yet — this stage is purely about consistency.
Week 4
Tone begins to even
Melanogenesis inhibition shows first. Diffuse dullness and post-inflammatory marks soften before anything structural moves.
Week 8–12
Texture and firmness
The horizon on which the trial measured significant wrinkle improvement, by optical profilometry and blinded clinical grading.
Ongoing
Daily protection
Antioxidant benefit works on the day you apply it rather than accumulating — which is the whole argument for using it every morning, indefinitely.
Questions
Before you begin.
Because each solves a different problem. L-ascorbic acid is the most active and the least stable. Magnesium ascorbyl phosphate is pH-neutral and survives conditions that degrade pure ascorbic acid. 3-glyceryl ascorbate converts gradually in the skin, extending delivery. One form means accepting one weakness. Three covers the gaps.
All vitamin C oxidizes eventually; the question is how fast. Ferulic acid slows it substantially and the derivatives are inherently more stable than pure ascorbic acid. A gradual deepening from clear to pale straw is normal over the life of the bottle. Distinctly orange means it is time to replace it.
Yes, but separate them by time of day. This serum in the morning, the Ageless Retinol Moisturizer at night. Layering them in one routine tends to cost you tolerance without buying you results.
Yes, lightly. If you need a completely fragrance-free routine, the Lumina PDRN Brightening Serum and the Renew Replenishing Moisturizer are both fragrance-free.
References
The research behind this formulation.
For anyone who wants to read further.
1.
Topical vitamin C produced statistically significant improvement in fine wrinkling, roughness, laxity and sallowness over three months, measured by optical profilometry on skin-surface replicas and by blinded clinical assessment.Traikovich SS. Use of topical ascorbic acid and its effects on photodamaged skin topography. Arch Otolaryngol Head Neck Surg. 1999;125(10):1091–8.
2.
Systematic review of the clinical efficacy of topical vitamin C on wrinkle appearance across controlled trials.Clinical Efficacy of Topical Vitamin C on the Appearance of Wrinkles: A Systematic Literature Review. J Drugs Dermatol. 2023;22(9):898.
3.
Mechanisms of action and clinical applications of topical vitamin C, including the pH and stability constraints that govern delivery.Al-Niaimi F, Chiang NYZ. Topical Vitamin C and the Skin. J Clin Aesthet Dermatol. 2017;10(7):14–17.
4.
Adding ferulic acid to a solution of vitamins C and E doubled its photoprotection of skin from four-fold to eight-fold, measured by erythema and sunburn cell formation.Lin FH et al. Ferulic acid stabilizes a solution of vitamins C and E and doubles its photoprotection of skin. J Invest Dermatol. 2005;125(4):826–32.
Please note — These references describe studies of individual ingredients, not of this finished product. They are provided for educational purposes and do not constitute a claim that this product produces the same result. These statements have not been evaluated by the Food and Drug Administration.
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