Sea Buckthorn
Useful mainly for people with dryness of the eyes or mucous membranes seeking a nutritional oil.
Quick decision guide
May help most
people with dryness of the eyes or mucous membranes seeking a nutritional oil
Common dosing range
1.5–3 g/day of sea buckthorn oil
When to expect effects
Weeks
Watch out for
may add to bleeding risk with anticoagulants; acidic berries can aggravate reflux
What is it
Sea buckthorn (Hippophae rhamnoides) is a hardy shrub native to Europe and Asia whose bright orange berries are unusually rich in vitamin C, carotenoids, vitamin E, and rare omega-7 fatty acids. The berries, seeds, and seed oil are used as foods and supplements.
Is it worth it for you?
Use this as a quick fit check, not a diagnosis.
Worth considering if…
Probably skip if…
Evidence at a glance
| Goal | Effect | Best fit | Time |
|---|---|---|---|
dry eye syndrome Limited Evidence | Small | people with mild dry eye, including in dry seasons | Weeks |
mucosal and vaginal dryness Limited Evidence | Modest | postmenopausal women or others with mucosal dryness | Weeks |
skin conditions (eczema, dryness) Mixed Evidence | Not established | not established | Weeks |
dry eye syndrome
- Effect
- Small
- Best fit
- people with mild dry eye, including in dry seasons
- Time
- Weeks
mucosal and vaginal dryness
- Effect
- Modest
- Best fit
- postmenopausal women or others with mucosal dryness
- Time
- Weeks
skin conditions (eczema, dryness)
- Effect
- Not established
- Best fit
- not established
- Time
- Weeks
Evidence for 3 uses
AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.
dry eye syndrome
Supplement benefitA randomized trial of sea buckthorn oil reported reduced worsening of dry-eye symptoms and signs over a dry-season period, attributed partly to its omega-7 (palmitoleic) and omega-3 fatty acids. Evidence is limited to a few small studies and effects are modest.
Bottom line: May modestly ease dry-eye symptoms, but the supporting evidence is small and limited.
mucosal and vaginal dryness
Supplement benefitA small randomized trial found oral sea buckthorn oil improved vaginal epithelial integrity and dryness in postmenopausal women, again linked to its omega-7 fatty acid content and a proposed role in mucosal membrane health. The evidence base is small and preliminary.
Bottom line: Limited evidence suggests it may help mucosal dryness, but trials are small.
skin conditions (eczema, dryness)
Supplement benefitSea buckthorn oil's fatty acids and antioxidants are used in skin formulations, and small studies suggest possible benefit for dry skin and certain inflammatory dermatoses such as atopic dermatitis. Trials are few, small, and inconsistent, so benefit is unproven.
Bottom line: Possible but unproven help for dry or inflamed skin; evidence is weak.
How it works
How to take it
What to track
3 commercial forms
Compare the main delivery options and what they’re best suited for.
Berry pulp oil
The orange-red oil pressed from the fruit pulp. Often emphasized for mucosal and skin support due to omega-7 content.
Rich in palmitoleic acid (omega-7) and carotenoids; fat-soluble.
Seed oil
Pressed from the seeds, with higher proportions of alpha-linolenic and linoleic acids and lower carotenoid content than pulp oil.
Balanced omega-3 and omega-6 fatty acids; fat-soluble.
Juice or whole berry powder
Used as a vitamin C and antioxidant-rich food ingredient. Tart, sour taste; commonly blended with other juices.
Water-soluble vitamin C and flavonoids retained.
Safety
Know the common side effects, key cautions, and who should avoid it.
Common side effects
Who should avoid it
- people on anticoagulants or with bleeding disorders without clinician input
- those within 1–2 weeks of surgery
Pregnancy & breastfeeding
Consult a clinician before using concentrated supplements in pregnancy or breastfeeding, as data are limited.
Interactions
flavonoids may add to bleeding risk
possible additive blood-pressure lowering (animal data)
Choosing a product
What to look for on the label — and what to be skeptical of.
Look for…
Be skeptical of…
Frequently asked questions
What is omega-7 and why is sea buckthorn known for it?⌄
Omega-7 (palmitoleic acid) is a fatty acid found in few foods. Sea buckthorn pulp oil is one of the highest plant sources, which is why it is often marketed for mucosal membrane health.
How is the seed oil different from the pulp oil?⌄
Pulp oil is orange and rich in carotenoids and omega-7. Seed oil is a paler yellow and is dominated by omega-3 and omega-6 fatty acids. Products may blend both or list which one is included.
Is sea buckthorn high in vitamin C?⌄
Yes. The berries contain substantially more vitamin C by weight than oranges, though the exact amount depends on cultivar and processing.
Can I apply sea buckthorn oil to my skin?⌄
Yes. It is widely used in skincare for moisturization and as a carrier oil. Test on a small patch first, as the deep orange color can temporarily stain skin and fabric.
References by claim
Track Sea Buckthorn with Pilora
Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.
Coming to App StoreDisclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.