Glossary
An oil cold-pressed from the seeds of meadowfoam (Limnanthes alba), a wildflower native to the Pacific Northwest. Meadowfoam oil is remarkable for its unique fatty acid profile: over 98 percent of its fatty acids contain 20 or more carbon atoms (eicosenoic and erucic acids), making it one of the most stable and longest-lasting cosmetic oils available.
Meadowfoam oil's long-chain fatty acids (predominantly C20:1 and C22:1) are inherently resistant to oxidation because longer carbon chains with single double bonds are thermodynamically more stable than the shorter polyunsaturated chains in most plant oils. This gives meadowfoam oil a shelf life of 3-5+ years without refrigeration.
This stability makes meadowfoam oil invaluable as a natural preservative in oil blends. Adding 10-15 percent meadowfoam oil to a blend of less stable oils (like rosehip or hemp seed) significantly extends the blend's shelf life by protecting the more vulnerable oils from oxidation.
On the skin, meadowfoam oil forms a thin moisture barrier that reduces transepidermal water loss while remaining lightweight and non-greasy. It has a comedogenic rating of 1, making it suitable for facial use on most skin types.
Meadowfoam oil also enhances the performance of other oils when blended together. Its long-chain fatty acids create a structured lipid layer that improves the skin adhesion and wear time of oil-based products, making them feel smoother and last longer.
Its fatty acid profile is dominated by very long-chain monounsaturated fats (C20:1 eicosenoic acid and C22:1 erucic acid). These long chains with only single double bonds are much more resistant to oxidative degradation than the shorter, polyunsaturated fats found in most plant oils.
Meadowfoam oil extends shelf life of oil blends through its own oxidative stability and by creating a protective environment for other oils. However, it works differently than vitamin E (which is an active antioxidant). Using both meadowfoam oil and vitamin E provides the most comprehensive oil blend preservation.
Yes. Its lightweight feel, low comedogenic rating, excellent stability, and moisture-barrier properties make it an excellent facial oil, either alone or blended with other oils. It is particularly good for mature and sensitive skin types.
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