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Botanical

Sea Buckthorn

Sea buckthorn, Hippophae rhamnoides, is a shrub with orange berries, used in berries, purees, powders, extracts and oils.

Also listed as Hippophae rhamnoides, Buckthorn, Buckthorn Bark, Sea Buckthorn Bark

LongevityImmune SupportCardiovascularHair & SkinGut Health

What it is studied for

The strongest rated effects first. Bars show the size of the effect, the letter grades the evidence, and each rating lists the studies behind it.

Oxidative stressLongevityModerateBNo linked study
InflammationModerateBNo linked study
Immune SupportModerateBNo linked study
Cholesterol balanceCardiovascularModerateBNo linked study
Anti-aging SkinHair & SkinModerateBNo linked study
Skin HydrationHair & SkinModerateBNo linked study
All 8 rated effectsGrouped by health goal, with the publications behind each rating

What is in sea buckthorn products?

Sea buckthorn, Hippophae rhamnoides, is used in berries, purees, powders, extracts and oils. These preparations differ, so a result with one is not a promise about the others. 1

Why people take it

Immune Support19.1%
Essential Health17.4%
Gut Health9.5%
Hair & Skin9.5%
Energy8.3%
Detox8.1%

SuppCo community snapshot, 2026-09-28. Reasons for use are not evidence that it works.

Questions people ask

Is the oil proven to moisturize skin?

The small skin trial did not establish a statistically significant moisture benefit. 2

Does the dry-eye study show a cure?

No. It found a smaller seasonal rise in tear concentration, with less consistent symptom findings. 3

Can it replace vaginal estrogen?

The placebo-controlled trial did not compare it with estrogen and found no significant improvement in the overall vaginal-health index. 4

Sources