Phytonadione
What is Phytonadione?
Phytonadione is the INCI name for phylloquinone, the synthetic counterpart to vitamin K1, a fat-soluble compound naturally present in leafy green plants. Chemically, it belongs to the naphthoquinone family and features a phytyl side chain. In cosmetics, it falls under emollients and miscellaneous skin conditioning agents, commonly found in creams, lotions, and serums. It functions by forming a protective film on the skin's surface, which helps retain moisture, enhances smoothness, and supports flexibility without clogging pores. This ingredient integrates well into oil-based formulations due to its lipophilic nature, aiding overall skin barrier integrity and providing a supple texture.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Supports skin softness and smoothness through conditioning action.
Offers soothing properties for comfortable skin feel.
Non-comedogenic, suitable for pore-friendly routines.
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 or rough skin seeking conditioning. | People with known allergies to vitamin K derivatives. |
| Those desiring soothing effects in daily skincare. | Those preferring very low EWG-rated ingredients. |
| Users of oil-based products needing emollient support. | Sensitive skin types without patch testing first. |
Safety Notes
- Rated moderate concern by EWG due to absorption and data gaps.
- Generally recognized as safe in cosmetic use by regulatory reviews.
Frequently Asked Questions about Phytonadione
What role does phytonadione play in cosmetics?
It serves as a skin conditioning agent, helping maintain softness, smoothness, and flexibility.
Is phytonadione comedogenic?
It has a comedogenic rating of 0, making it unlikely to clog pores.
What is the EWG score for phytonadione?
EWG rates it 3, indicating moderate concern based on available data.