Sea Buckthorn Oil: What Makes It So Special ?
Sea buckthorn is best known for its bright orange berries, but some of the most interesting compounds in the fruit are found in its oils. Unlike many plants that produce a relatively similar oil throughout their fruit, sea buckthorn produces oils with remarkably different compositions depending on where the oil comes from.
The two main types are seed oil and pulp oil. They come from different parts of the berry and have different fatty-acid profiles and bioactive compounds. This difference is one of the reasons sea buckthorn has attracted attention in nutrition, cosmetics and food research. 
Two Oils From One Berry
Sea buckthorn berries contain oil in both their seeds and their fleshy pulp.
Although both are called sea buckthorn oil, they should not be considered identical.
Seed oil is particularly rich in polyunsaturated fatty acids, including linoleic acid (omega-6) and alpha-linolenic acid (omega-3). It also contains compounds such as tocopherols and phytosterols.
Pulp oil, on the other hand, is especially notable for its palmitoleic acid content and its naturally occurring carotenoids. These differences give the two oils their own characteristics and potential applications.
What Makes Pulp Oil Different?
One of the most distinctive features of sea buckthorn pulp oil is palmitoleic acid, an omega-7 fatty acid.
Palmitoleic acid is a monounsaturated fatty acid that occurs naturally in several foods, but sea buckthorn pulp oil can contain particularly high levels. Research on different sea buckthorn varieties has found palmitoleic acid to be one of the dominant fatty acids in pulp oil.
This is one reason omega-7 is so closely associated with sea buckthorn.
However, the exact composition is not always identical. Variety, growing conditions, harvest time and extraction method can all influence the final oil composition.
And What About Seed Oil?
Sea buckthorn seed oil has a different profile.
Compared with pulp oil, seed oil generally contains much higher proportions of polyunsaturated fatty acids. Linoleic acid and alpha-linolenic acid are particularly important components.
This makes seed oil interesting from a nutritional and cosmetic perspective, although its composition can vary considerably between cultivars and growing regions.
The distinction is therefore quite simple:
Pulp oil → notable for palmitoleic acid and carotenoids
Seed oil → notable for polyunsaturated fatty acids
Neither is simply a “better” oil. They are different oils with different compositions.
The Orange Colour Comes From Carotenoids
Sea buckthorn pulp oil is often strongly orange or reddish-orange.
The colour comes largely from naturally occurring carotenoids. These compounds are pigments found in many plants and are particularly abundant in the fleshy parts of sea buckthorn berries.
The concentration of carotenoids is one of the characteristics that distinguishes pulp oil from seed oil. Sea buckthorn oil research has identified carotenoids alongside tocopherols, phytosterols and fatty acids as important groups of bioactive compounds.
The intensity of the colour can vary depending on the berry variety, maturity and processing method. Why Is Sea Buckthorn Oil Used in Cosmetics?
Sea buckthorn oil has attracted considerable interest from the cosmetic industry because it combines fatty acids with naturally occurring lipophilic compounds such as carotenoids and tocopherols.
Plant oils can help support the skin's lipid environment and are commonly incorporated into creams, serums, balms and other formulations.
Research has investigated sea buckthorn oil and its fatty acids in relation to skin and mucosal health. However, it is important to distinguish laboratory and preliminary findings from proven clinical effects. More human research is still needed to establish the effectiveness of specific sea buckthorn oil preparations for particular conditions.
How Is Sea Buckthorn Oil Extracted?
The final composition of sea buckthorn oil depends partly on how it is produced.
Oil can be obtained from seeds, pulp or other fruit fractions using different extraction techniques. Cold pressing, solvent extraction and supercritical carbon dioxide extraction are among the methods described in scientific literature.
Each technique can influence the amount of fatty acids, pigments and other compounds retained in the finished oil.
For this reason, two products labelled “sea buckthorn oil” can have noticeably different colours, aromas and chemical profiles.
What Should You Look For in a Sea Buckthorn Oil?
If you are comparing sea buckthorn oils, the first question should be: Which part of the berry was used?
Look for clear information about whether the product contains:
• Sea buckthorn pulp oil
• Sea buckthorn seed oil
• A mixture of seed and pulp oils
• Whole-fruit oil
It is also useful to check the botanical name, extraction method and processing information. A transparent product description makes it easier to understand what you are actually buying. Why Does the Origin Matter?
Sea buckthorn grows across a wide geographical range, and different species, subspecies and cultivars can have different chemical profiles.
Growing conditions, soil, climate, genetics and harvesting time can all influence the berry and the resulting oil.
This is why it is difficult to give one universal composition for all sea buckthorn oils.
For a producer, this variability is not necessarily a disadvantage. It is part of what makes sea buckthorn an interesting crop.
A Berry With More Than One Story
Sea buckthorn is sometimes described simply as an “omega-7 berry”, but the reality is more interesting.
Its berries contain several groups of compounds, and the composition changes depending on which part of the fruit is examined.
The pulp provides an oil rich in palmitoleic acid and carotenoids, while the seeds provide an oil rich in polyunsaturated fatty acids. Together, they demonstrate how much chemical diversity can exist inside a single small berry.
Final Thoughts
Sea buckthorn oil is special not because it contains one magical ingredient, but because of the unusual combination of compounds found in the berry.
Its pulp oil is particularly interesting for its omega-7 palmitoleic acid and carotenoids, while its seed oil provides a different profile dominated by polyunsaturated fatty acids.
As research continues, scientists are learning more about how these compounds behave and how sea buckthorn can be used in food, cosmetics and other applications.
For anyone interested in sea buckthorn, understanding the difference between pulp oil and seed oil is the best place to start.
FAQ :
1. What is the difference between pulp oil and seed oil?
Pulp oil is rich in omega-7 and carotenoids, while seed oil is richer in omega-3 and omega-6 fatty acids.
2. Why is sea buckthorn pulp oil orange?
Its orange colour mainly comes from natural carotenoid pigments.
3. Why is sea buckthorn pulp oil rich in omega-7?
Pulp oil can contain high levels of palmitoleic acid, an omega-7 fatty acid.
4. How is sea buckthorn oil extracted?
It can be extracted using methods such as cold pressing, solvent extraction and supercritical CO₂ extraction.
5. What should you check when buying sea buckthorn oil?
Check whether it contains pulp oil, seed oil, or both, along with its extraction method.