Vitamin D
What is Vitamin D?
Vitamin D encompasses fat-soluble secosteroids, mainly cholecalciferol (vitamin D3) from sunlight exposure on skin or animal sources, and ergocalciferol (D2) from plants and yeast. In cosmetics, it appears as an active ingredient in creams, lotions, and serums within the skin conditioning category. It works by supporting the skin's lipid barrier, aiding retention of moisture and promoting a supple texture. This emollient action helps prevent dryness without pore-clogging potential. Derived synthetically or naturally for stability in formulations, it integrates into emulsions to bolster the stratum corneum's integrity, fostering resilience against environmental stressors while maintaining natural pliability.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Supports skin softness and smoothness.
Enhances skin flexibility.
Helps maintain moisture barrier.
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 with dry skin seeking conditioning. | People with known vitamin sensitivities. |
| People wanting non-comedogenic hydration. | Individuals concerned by moderate EWG ratings. |
| Those incorporating vitamins into routines. | Those preferring minimal-ingredient products. |
Safety Notes
- EWG rates it moderate (4) due to data limitations.
- Topical use generally well-tolerated at cosmetic levels.
Frequently Asked Questions about Vitamin D
What role does Vitamin D play in cosmetics?
Acts as a skin conditioning agent to maintain softness, smoothness, and flexibility.
Is Vitamin D comedogenic?
No, it has a comedogenic rating of 0.
What is the EWG rating for Vitamin D?
Rated 4, indicating moderate concern.