Sea Buckthorn in Skincare: What the Omega-7 Booster Can Really Do for Your Skin

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The short answer

Sea buckthorn oil provides palmitoleic acid (omega-7), a fatty acid rare in the plant kingdom, as well as vitamins C and E and carotenoids. Current studies show effects on the skin barrier, moisture and elasticity – but the evidence comes largely from small studies, some on oral rather than topical use. As a complement to barrier care, sea buckthorn makes sense; as a miracle cure, it's overrated.

What is sea buckthorn oil, and what makes omega-7 special?

Sea buckthorn (Hippophae rhamnoides) yields two different oils: the orange-red pulp oil, rich in carotenoids and palmitoleic acid, and the seed oil, which contains more linoleic and alpha-linolenic acid. In skincare, it's usually the pulp oil that is meant when the special properties of sea buckthorn are mentioned. Palmitoleic acid, an omega-7 fatty acid, rarely occurs in significant amounts in plant oils – most plant oils mainly provide omega-3, -6 and -9. That's exactly what makes sea buckthorn interesting for formulations, as omega-7 is also a natural component of human sebum. Added to this are high concentrations of vitamin C, vitamin E, beta-carotene and flavonoids, which give the oil its antioxidant properties.

How does sea buckthorn work on the skin?

The mechanisms of action investigated in studies can be roughly divided into three areas:

• Barrier support: The fatty acids become part of the lipid matrix of the stratum corneum and can thus help reduce transepidermal water loss.
• Antioxidant effect: Carotenoids and vitamins C and E neutralise free radicals generated by UV radiation and environmental stress.
• Anti-inflammatory effect: Flavonoids from sea buckthorn show anti-inflammatory effects in laboratory studies, which can be supportive for irritated or sensitive skin.

Combined, these effects are said to lead to plumper, more elastic skin with fewer visible signs of oxidative stress – a profile that makes sea buckthorn particularly interesting for more mature skin or skin stressed by environmental influences.

What does the research show, critically assessed?

A review published in Frontiers in Pharmacology in 2025 assesses sea buckthorn positively from an anti-inflammatory perspective and summarises numerous preclinical studies on skin and mucous membrane health. A placebo-controlled study from 2023 examined the effect of orally taken sea buckthorn oil on skin, eye and mucous membrane health and found measurable improvements in skin moisture and elasticity after several weeks. A 2025 preprint on cosmetic applications also describes effects on skin regeneration, dark spots and blemish-prone skin.

Two things should be put into critical context: first, some of the more robust studies relate to oral intake of sea buckthorn oil, not to topical use in a cream – the results can't automatically be transferred to products applied to the skin. Second, many of the studies cited are small observational studies or laboratory investigations, not large-scale, independent clinical trials of topical use in humans. Basic research on the ingredients is solid, but specific evidence for finished cosmetic formulations remains thinner than marketing texts often suggest. Sea buckthorn is therefore a plausible but not conclusively proven barrier ingredient.

Using sea buckthorn correctly in your skincare routine

Daytime barrier care with The Day Cream

The Day Cream combines plant lipids with sea buckthorn, using exactly the interplay that the research suggests: plant lipids complement the building blocks of the skin barrier, while sea buckthorn adds antioxidants and omega-7. For a light, non-greasy day cream, that's a sensible combination – especially for dry skin or skin stressed by environmental influences.

Add moisture with The Hydrating Serum

If you also want plump hydration, sea buckthorn care combines well with The Hydrating Serum – its Alteromonas ferment extract provides quick hydration while the day cream keeps the lipid barrier stable.

Frequently asked questions about sea buckthorn in skincare

Is sea buckthorn oil comedogenic?

Pure sea buckthorn pulp oil is considered potentially comedogenic in high concentrations because of its high carotenoid content. In well-formulated creams in which it makes up only part of the formula, it is usually well tolerated.

Which skin type is sea buckthorn best suited to?

Dry, more mature or environmentally stressed skin in particular benefits from the combination of fatty acids and antioxidants. For very blemish-prone or very oily skin, low-dose, light formulations are preferable.

Can sea buckthorn oil be applied neat?

It's possible, but because of its intense orange-red colour and potentially comedogenic effect in pure form, a formulation with a balanced dose is usually the more practical and better-tolerated option.

Conclusion

Sea buckthorn is a scientifically interesting but not miraculous ingredient: the combination of the rare omega-7 fatty acid, vitamins and antioxidants points to a real benefit for barrier care, but the most robust evidence so far relates more to oral intake than to creams. If you want to add sea buckthorn to your routine in a targeted way, the Hydra Barrier Repair Set is a good start to barrier-focused care.