Sea-buckthorn oil is a botanical lipid ingredient that can contribute to the conditioning and emollient character of a skincare formula. In a vitamin C serum it is a separate formulation component, not another name for vitamin C or automatic proof of stronger brightening. The part of the plant used, extraction, concentration and finished formula all matter when interpreting research and marketing claims.
Distinguish the ingredient roles
| Component | Identity | Appropriate discussion |
|---|---|---|
| Ascorbyl Glucoside | Vitamin C derivative | Vitamin C form and cosmetic tone positioning |
| Ferulic Acid | Distinct phenolic ingredient | Antioxidant/formulation context, subject to evidence |
| Sea-Buckthorn Oil | Botanical oil | Emollient care and formula character |
| Hyaluronic Acid / Sodium PCA | Water-binding ingredients | Hydration and outer-skin comfort |
Why botanical research needs precision
“Sea buckthorn” does not refer to one identical extract in all products. Berry, seed and other botanical materials can yield different profiles. A paper studying an oral supplement or a highly concentrated extract does not automatically demonstrate the same skin outcome for an oil included in a topical serum. Ingredient presence is not a controlled finished-product clinical result.
Likewise, do not infer that every sea-buckthorn-containing formula is safe for all sensitive skin or that its colour predicts oxidation. Product colour depends on the entire formulation; a botanical oil can contribute a hue from the start.
What LÉVOJU actually declares
LÉVOJU Vitamin C Serum has a verified historical record of 2% Ascorbyl Glucoside, 1% Ferulic Acid and 1% Sea-Buckthorn Oil. These figures must be rechecked for the exact currently sold regional formula before publication. The safe conclusion is that the oil is part of the botanical support system; no isolated product performance percentage is assigned to it here.
For related answers read Vitamin C and Ferulic Acid, Why Vitamin C Serum Turned Orange and Ascorbyl Glucoside vs L-Ascorbic Acid.
FAQ — Is sea-buckthorn oil pure vitamin C? No. Does orange oil colour mean a serum is spoiled? Not by itself; compare with the original formula appearance.
Explore the Vitamin C and Uneven-Looking Tone hub.
Sources
LÉVOJU Vitamin C product information; LÉVOJU Product Claims Review, 2 September 2026 (internal project source: `07-Levoju-Shopify-Product-Claims-Review-1-.md`); AAD: Avoid overpromising anti-ageing effects.