Calcium Ascorbate
What is Calcium Ascorbate?
Calcium ascorbate is the calcium salt of L-ascorbic acid, a synthetic derivative of vitamin C known for its water-soluble properties and enhanced stability compared to pure ascorbic acid. It appears as a white to slightly yellow powder and is commonly incorporated into cosmetic products like serums, creams, and lotions. In formulations, it functions primarily by donating electrons to neutralize free radicals, thereby protecting other ingredients from oxidation and extending product shelf life. Additionally, it supports skin conditioning by helping to maintain the skin's moisture barrier and suppleness through its humectant-like effects. This ingredient is favored in gentle skincare lines due to its neutral pH, which minimizes potential irritation from acidic vitamin C forms. Regulatory bodies recognize it for safe use in rinse-off and leave-on products at typical concentrations.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Acts as an antioxidant to help stabilize sensitive ingredients and prevent formulation degradation.
Supports skin conditioning to promote softness and flexibility.
Offers a milder alternative to ascorbic acid with better stability in water-based products.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Individuals seeking gentle antioxidant protection in daily skincare routines. | Those with known allergies to ascorbic acid or vitamin C derivatives. |
| People with sensitive skin preferring stable vitamin C derivatives. | People experiencing irritation from vitamin C-containing products. |
| Users of products aiming for improved formulation longevity and skin comfort. | Individuals with specific sensitivities confirmed by patch testing. |
Safety Notes
- Rated low hazard by EWG, indicating broad safety in cosmetics.
- Non-comedogenic, unlikely to clog pores.
Frequently Asked Questions about Calcium Ascorbate
What is calcium ascorbate in skincare?
It is a calcium salt of vitamin C used as an antioxidant to protect products and condition skin.
Is calcium ascorbate safe for sensitive skin?
Yes, its neutral pH and low hazard rating make it suitable for sensitive skin types.
Does it clog pores?
No, it has a comedogenic rating of 0, meaning it does not contribute to pore clogging.