Editor’s update (May 2026): The Vitamin C Ester 15 reviewed here has been replaced by Perricone MD’s reformulated Vitamin C Ester CCC+ Ferulic Brightening Complex 20% — the same vitamin C ester philosophy, now at a higher strength and stabilised with ferulic acid. The review below reflects the original serum as it was tested, with a section on what has changed.
Vitamin C is the ingredient everyone agrees on and almost nobody uses well. The pure form, L-ascorbic acid, is brilliant on paper and temperamental in practice — it oxidises in the bottle, it stings sensitive skin, and it loses its punch the moment air and light reach it. Perricone MD built its Vitamin C Ester 15 around a quieter, more stable alternative, and that single decision is the reason this serum earned a place in my routine and held it for years. It is the brightening serum that, in many ways, defined the category.
The trouble with ordinary vitamin C
Most vitamin C serums use L-ascorbic acid, the pure, water-soluble form. It works — it is genuinely one of the best-studied brightening and antioxidant actives in skincare — but it is high-maintenance. It needs a low, acidic pH to absorb, and that acidity is exactly what makes it sting and flush reactive skin. It is also chemically restless: exposed to air, light and warmth it oxidises, turning the serum yellow then brown, and an oxidised vitamin C serum is not just weaker, it can actually be mildly irritating. That is the quiet reason so many people own a half-used bottle of vitamin C they stopped trusting. The ester form Perricone uses sidesteps the whole problem. Ascorbyl palmitate is fat-soluble and far more stable, so it keeps its strength longer and slips into the skin’s lipid barrier without the acidic sting. The trade-off is honest: it is gentler, and it works more gradually.
What was in the original formula
The serum I tested carried vitamin C ester at a 15% concentration, supported by two ingredients that became Perricone MD’s signature. The first is alpha lipoic acid, an antioxidant the brand is closely associated with — it helps mop up the free radicals that accelerate visible ageing, and it has a calming, evening effect on the look of the skin. The second is DMAE, included for its tightening, firming impression on tone and contour. Together, that trio is the brand’s whole anti-ageing thesis in one bottle: protect the skin from oxidative stress, brighten it, and keep it looking firm. It is worth saying that this was never a hard-hitting acid treatment in disguise. It was designed as a daily, wearable brightener — the kind of product you use steadily for months rather than a corrective you reach for in a crisis.
How I used it
This is an easy serum to live with, which is half the reason it lasted in my routine. I used it in the morning, after cleansing and before moisturiser, and always under sunscreen — vitamin C and SPF are a genuine team, because the antioxidant helps defend against the daylight damage the sunscreen blocks. The texture is light and sinks in within a minute, with none of the tacky film some serums leave, so it wore comfortably under moisturiser, makeup, everything. There was no sting, no flush, no settling-in period of irritation, which meant I never had the excuse to skip it. And skipping is the enemy here: an ester-form vitamin C rewards consistency above all. Used most mornings for a couple of months it delivers; used sporadically it does very little.
My results
If you want drama in a week, this is not your serum, and it never claimed to be. What it does is slower and, in its own way, more reassuring. Over the first month my skin began to read brighter — not lighter, brighter, the difference between a complexion that looks tired and one that looks rested. By the six-week mark the overall tone was more even; the faint background dullness that creeps in over winter had lifted, and my skin took makeup better, with less of that flat, grey undertone. It did not erase established dark spots — that is not what a gentle all-over brightener is for — but it made the whole canvas look healthier and more uniform. For a product that asked nothing of my skin in return, no stinging, no peeling, that was a genuinely good trade.
What has changed: the CCC+ Ferulic 20% reformulation
Perricone MD has since retired the 15% formula and replaced it with the Vitamin C Ester CCC+ Ferulic Brightening Complex 20%. The new serum keeps the gentle ester philosophy but raises the stakes: it combines three forms of vitamin C — 3-O-ethyl ascorbic acid, sodium ascorbyl phosphate and tetrahexyldecyl ascorbate, the “CCC” of the name — to reach the brand’s highest 20% concentration. Crucially, it adds ferulic acid, an antioxidant whose other job is to stabilise vitamin C and stop it degrading, plus vitamin E, and it uses a phospholipid delivery system to carry the actives deeper. The current serum is positioned to brighten, smooth and reduce the look of discolouration over time. It is a premium product — the 2 fl oz size sits around 159 to 165 US dollars — and it is used both morning and evening. If you are buying today, this is the serum that carries the original’s DNA forward.
Is it worth it?
The honest answer depends on your skin. If you have tried a classic L-ascorbic acid vitamin C serum and your skin tolerated it happily, you may not need to pay the ester premium — pure vitamin C, used well, is effective and often cheaper. But if you have a drawer of abandoned vitamin C bottles because every one of them stung, flushed your cheeks or oxidised before you finished it, the ester format is one of the best-tolerated brightening options there is, and Perricone MD makes the most established version of it. It is unambiguously a luxury buy, and it works gradually rather than dramatically. For reactive, sensitive or simply vitamin-C-shy skin that still wants the brightening and antioxidant payoff, though, it remains genuinely worth the spend.
Frequently asked questions
What does Perricone Vitamin C Ester 15 do?
It is a lipid-soluble form of vitamin C (ascorbyl palmitate) designed to brighten dullness, even tone, and support collagen — without the sting that L-ascorbic acid serums can cause.
Has Perricone Vitamin C Ester 15 been discontinued?
The original 15% formula has been replaced by the higher-strength Vitamin C Ester CCC+ Ferulic 20%, which combines three forms of vitamin C with added ferulic acid for stability.
Where can you buy Perricone Vitamin C Ester today?
The current CCC+ Ferulic 20% serum is on Amazon, Sephora, and Perricone MD’s own site. Older 15% stock occasionally surfaces from third-party sellers but is rarely fresh.
Is Perricone Vitamin C Ester worth it versus other vitamin C serums?
For sensitive skin that cannot tolerate L-ascorbic acid, the ester format is one of the best-tolerated brightening options. It is gentler than 15% L-AA but works more slowly.
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👉 Perricone MD Vitamin C Ester CCC+ Ferulic Brightening Complex on Amazon
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