Vitamin C is one of the most studied and recommended ingredients in skincare, but not all formulas are created equal.
Many Vitamin C serums use L-Ascorbic Acid because it’s inexpensive and widely available. The issue?
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It’s highly unstable, oxidizing quickly when exposed to air, light, or heat.
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It has a low pH that can be irritating to sensitive skin.
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It struggles to penetrate the skin’s lipid barrier, meaning much of it never reaches the deeper layers where it’s needed most.
This means many clients spend money on Vitamin C products that oxidize before they’ve finished half the bottle — or cause irritation without delivering visible results.
Advanced Forms of Vitamin C in TOMA’s Cellular C Serum
At TOMA, we wanted to solve these problems with a formulation that’s stable, absorbable, and effective. Instead of relying on L-Ascorbic Acid, our Cellular C Serum combines two advanced, synergistic forms of Vitamin C, both of 100% natural origin.
Tetrahexyldecyl Ascorbate
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A stabilized Vitamin C ester derived from plants.
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Oil-soluble, which means it penetrates the lipid barrier of the skin with ease.
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Targets the causes of hyperpigmentation while boosting collagen synthesis.
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Gentle enough for all skin types, yet powerful in results.
Ascorbyl Glucoside
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A water-soluble derivative produced through a biotechnological fermentation process.
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Highly stable and resistant to oxidation.
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Brightens, supports collagen, and delivers antioxidant protection against free radicals.
Together, these forms of Vitamin C create a dual-delivery system — oil-soluble and water-soluble — so skin receives comprehensive antioxidant protection across multiple layers. This synergy also extends the stability of the formula, ensuring it remains potent until the last drop.
Why Stability and Absorption Matter
When Vitamin C oxidizes, not only does it lose potency, but it can also generate free radicals — doing more harm than good. That’s why stability is just as important as concentration.
Absorption is the second piece of the puzzle. A serum that sits on the skin’s surface may feel nice, but it won’t make long-term changes. By pairing oil-soluble and water-soluble derivatives, our Cellular C Serum penetrates more effectively, delivering benefits where they’re needed most: inside the skin’s deeper layers.
The Visible Benefits of Cellular C Serum
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Brighter tone and reduced appearance of hyperpigmentation.
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Improved elasticity and firmness through collagen stimulation.
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Daily defense against oxidative stress and environmental damage.
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Gentle, irritation-free results, even for sensitive skin.
When Vitamin C is formulated correctly, it becomes one of the most powerful tools for radiant, resilient skin.
The Bottom Line
Vitamin C can be transformative — but only when it’s stabilized, absorbable, and combined thoughtfully. TOMA’s Cellular C Serum was designed with practitioners in mind, offering a formula that clients love and results you can trust.
Ready to bring advanced Vitamin C into your practice?
Shop Cellular C Serum
