Membrasin is the dryness specialist of the sea buckthorn shelf: an oil supplement built around mucous membranes, sold hardest for dry eyes, and formulated with a named CO2 extract called SBA24 alongside lutein and zeaxanthin. The maker’s shop listed it at 38.90 EUR for 90 capsules on 6 October 2026. Its facts panel prints an omega-7 figure in milligrams, as Swanson’s oil label and Biosash’s juice page also do. It scores 7.1 in our rubric, held back by documents we could not find rather than by anything we found.
Research-based review per our editorial policy. We have not taken this product. Everything below comes from the brand’s own published product information and from studies we have opened ourselves, and company claims are labeled as exactly that.
The scorecard
| Criterion | Weight | Membrasin result | Score |
|---|---|---|---|
| Purity and sourcing | 30% | Named CO2 extract, product page names no plant part or origin, Aromtech says pulp and seeds, maker says its supplier makes the oil in Tornio, Finland | 7.0 |
| Fatty acid profile | 25% | Omega-7 printed in milligrams per dose, 300 mg per two capsules | 8.5 |
| Third-party testing | 20% | No published certificate of analysis found | 6.0 |
| Value | 15% | 38.90 EUR for 90 capsules on the maker's site (6 October 2026), and the daily oil dose sits under the trial dose | 6.5 |
| Transparency | 10% | Strong numbers, product page omits plant part and species binomial | 7.0 |
| Weighted total, out of 10 | 7.1 | ||
The math: 30% × 7.0 + 25% × 8.5 + 20% × 6.0 + 15% × 6.5 + 10% × 7.0 = 7.1. Rubric details in the editorial policy.
Those five weights are not tuned to this brand. Our brand reviews all use the same rubric, which is what makes a 7.1 mean something next to a 9.0 or a 6.8.
What the documents show
- The positioning. Mucous membranes, framed around dryness, with dry eyes as the headline use and a companion eye spray sold as the second half of a two-step routine.
- The oil. The ingredient list leads with SBA24 sea buckthorn oil at 70 percent of the capsule contents, described as a CO2 extract. CO2 extraction is the method our oil explainer rates highest, so that is a real point in its favor.
- The numbers. The maker’s facts panel prints 1,000 mg per two capsules and 2,000 mg per four, with SBA24 at 70 percent of that. That works out to 700 mg of oil at the two capsule dose and 1,400 mg at four (our arithmetic), with omega-7 printed as 300 mg and 600 mg respectively. Printed milligrams beat “rich in omega-7” every single time.
- The rest of the formula. Lutein and zeaxanthin, vitamin E, and beta carotene ride along, so this is a multi-ingredient eye supplement rather than a plain sea buckthorn softgel. The nutrient table prints amounts for lutein and vitamin E but none for zeaxanthin.
- The price. The maker’s shop lists the Eye Hydration Supplement at 38.90 EUR for 90 capsules on 6 October 2026. It’s a Finnish shop that prices in euros.
- The plant part and origin. The product page names neither. The maker’s quality page says its oil supplier, Aromtech, produces its oil in Tornio, Finland, and that nearly all of that oil is wild and organic, though the same page also says it uses only cultivated berries from select producers who do not use pesticides. It does not say where the berries grow. Aromtech’s own page says SBA24 contains oil from both the berry pulp and the seeds.
- What we could not verify. A certificate of analysis, the species binomial on the ingredient list, and any US registered label. The NIH label database held no Membrasin entry when we searched it. The maker says its supplier runs more than 5,000 quality assurance analyses a year, but that’s a maker statement, not a published certificate.
The arithmetic the label does not do for you
Two numbers from the maker’s panel, one division, and you learn something the brand does not print. 300 mg of omega-7 out of 700 mg of oil (our arithmetic from the 1,000 mg panel figure and the 70 percent) works out to roughly 43 percent of the oil. Our canonical range for berry and pulp oil is 16 to 54 percent across the species, with typical commercial oils landing at 30 to 40, which puts this figure above the usual commercial band and inside the natural one.
Aromtech, the supplier, says SBA24 contains oil extracted from both the berry pulp and the seeds, and we can’t tell the split from the product page. The berry versus seed page explains why the distinction changes what is in the bottle more than any other label line, and a product this focused on omega-7 should print the plant part on its own product page.
The dose question, and why it matters here
The dry-eye evidence everyone quotes used 2 grams of oil a day for three months. This product’s stated routine is two capsules twice daily to start, then two to four a day. That delivers 1,400 mg of oil a day at the start and 700 to 1,400 mg after. At 350 mg of oil per capsule, matching the trial’s 2 grams would take about six capsules a day, more than the maker’s own upper number.
Two caveats sit on that comparison. The trial’s abstract says only sea buckthorn oil, so matching grams is not the same as matching the tested oil. And the trial tested sea buckthorn oil alone, not a formula carrying lutein, zeaxanthin, and beta carotene. The full picture is on our dry eyes page, and the eyes hub holds the rest of the ocular evidence.
The SBA24 connection, stated carefully
SBA24 is a trade name for a branded sea buckthorn oil. Aromtech, its maker, says all clinical Western research on sea buckthorn oil used SBA24, and the Yang 2009 skin study we cite across this site is one we could not check against that claim. There is a small hint of a link between that paper and Membrasin. The copy of that 2009 paper this site links to sits at a URL whose path reads “membrasin”, which is not where a neutral archive would file it. We would rather point that out than cite it quietly.
Now the limits. Aromtech’s statement is a maker claim and we could not check that the 2009 study used SBA24, so nobody should assume today’s capsule matches the 2009 study material. The dry-eye trial we lean on hardest names its oil only as sea buckthorn oil in the abstract and we could not verify which branded oil it used, so nobody should read the Larmo result as a trial of this product. And Yang 2009 is graded preliminary on our scale for good reasons: its oral arm had no placebo group, and it was industry-linked. The company’s own line that SBA24 is the world’s most researched sea buckthorn oil is a marketing claim, and the product page we read named no studies at all to support it.
Where Membrasin falls short
Documents. The facts panel gives numbers and the paperwork behind it is harder to find. No published certificate of analysis surfaced, the product page names no plant part or origin (the supplier’s page names the plant parts and the quality page says where the oil is produced, as above), and the species binomial does not appear in the ingredient list where it belongs. Our rubric pays for checkable documents, not brochures, which is exactly why third-party testing scores 6.0 and drags a genuinely good set of printed numbers down to 7.1.
Membrasin side effects, honestly
We have not taken this product, so anyone searching membrasin side effects will not find a first-hand account here. What we can give is the category picture, which applies to any concentrated sea buckthorn oil.
- Bleeding risk. Sea buckthorn berry oil at 5 g/day cut ADP-induced platelet aggregation in a small crossover study of 12 healthy men. That is a signal, not proof, and it is why anyone on warfarin, aspirin, or clopidogrel should clear this with a doctor, and why the safety hub says stop sea buckthorn oil supplements about two weeks before surgery.
- Pregnancy and breastfeeding. No human trial has tested concentrated sea buckthorn oil supplements in pregnant or breastfeeding women, so the standard answer stands: ask your doctor.
- The other ingredients. This is not a single-ingredient product. If you already take an eye formula, check whether you are doubling lutein, zeaxanthin, or vitamin A activity from beta carotene before you stack them. That question belongs to the formula, not to the berry.
- General tolerability. The trial reports we can read mention no serious adverse event for sea buckthorn oil at 0.5 to 3 g/day for three months, though most say little about safety. Long-term high-dose safety data does not exist, and we say so rather than filling the gap.
The cost-per-day question
The maker’s shop listed the Eye Hydration Supplement at 38.90 EUR for 90 capsules on 6 October 2026. That works out to about 0.43 EUR a capsule, 0.86 EUR for the two-capsule dose (700 mg of oil) and 1.73 EUR for four (1,400 mg). A bottle lasts 22 to 45 days at four to two capsules a day. It’s a Finnish shop that prices in euros with free shipping over 50 EUR in Finland, so check what shipping and tax add where you live. The 6.5 on value rests on the dose gap above, and we did not compare this price with other brands’ prices.
Prices move, so do the arithmetic at the point of purchase too. Take the current price, divide by the days a bottle lasts at the dose you intend to take, and hold that number (converted to dollars) against our anchors of $0.75 a day for SeabuckWonders softgels, $0.60 a day for SeabuckWonders’ berry oil and $0.83 for SIBU’s seed oil (our arithmetic from listed prices). The cost-per-day tool runs the same math on any bottle. Two fair points in the brand’s defense: a multi-ingredient eye formula is not directly comparable to a plain oil softgel, and any bottle covers half as many days at four capsules a day as it does at two, so the dose you settle on moves the answer more than the sticker does.
How it compares
Against the specialists on our brands ranking, Membrasin prints omega-7 in milligrams per dose and has no published testing we could find. Against the mainstream value brand Swanson, it prints a larger omega-7 amount per dose but not the plant part or species that Swanson’s oil label prints, and we found no published test data for either. What stands out on our list is a coherent single-problem focus. Several brands here sell a wide range. This one picked dryness and built the formula around it, and that focus is worth something our rubric does not measure.
What would raise or lower the score
Raise it: a published certificate of analysis, the plant part named on the label and product page, and a stated origin there too. Any one of those moves the 6.0 on testing or the 7.0 on purity, and all three together would put this brand in the conversation with the top tier. Lower it: dropping the milligram figures for adjectives. The printed numbers are carrying this score, and without them it would be a mid-6, like a brand that won’t commit to a measurement.
Who should buy it, and who should skip it
Buy it if dry eyes or general dryness is your actual reason for being here, you want the lutein and zeaxanthin in the same capsule, and you accept paying for a formula rather than a raw ingredient.
Skip it if you are dose-matching the trials, because you need a plain oil and a plant part printed on the product page, and the capsules guide has scored options that print both. Skip it too if a certificate of analysis is your minimum bar, since we could not find one.
What to verify before you buy
Read the current label rather than any review, ours included. Confirm the omega-7 milligrams are still printed, look for the plant part and the species name, count how many capsules your intended dose needs per day, and work out the real cost per day from the price in front of you. Membrasin reviews on retail sites are customer impressions rather than measurements, and our rubric does not read them as evidence. If the numbers still hold when you check them, this is a well-labeled product with a missing paperwork trail, which is precisely what 7.1 is meant to say.
Frequently asked questions
Is Membrasin worth it?
It depends on what you want from it. The maker's facts panel prints omega-7 in milligrams, which some other brands on our list also do, and the oil is a CO2 extract sold under a named trade name. The product page names no plant part or origin, though its oil supplier Aromtech says the oil comes from berry pulp and seeds, and we found no published certificate of analysis. It scores 7.1 in our rubric, and we have not tested it ourselves.
Does Membrasin help dry eyes?
No trial has tested this product. What exists is a 2010 randomized trial of 100 people that gave 2 grams a day of sea buckthorn oil for three months and found a smaller winter rise in tear film osmolarity plus lower worst redness scores, with most tracked symptoms unchanged. That is moderate evidence for sea buckthorn oil, not for any one bottle of it.
Illustration.