“Omega-7?”Here!palmitoleic acid

Plant

Hasn’t appeared in a scanned product yet.

As a supplement

Talk to your doctor or pharmacist.

Roll Call does not check drug interactions or assess personal safety.

A monounsaturated fatty acid, most often supplied in supplements as an extract from sea buckthorn berries or from macadamia or anchovy oil. "Omega-7" is a marketing name for palmitoleic acid rather than an official nutrient category.

Why it’s used

Taken by some for perceived support of skin, mucous membrane moisture, or lipid levels.

What the evidence says

Some small clinical studies exist on sea buckthorn oil, a specific source of omega-7, in relation to skin and eye moisture, but these examine the whole oil rather than isolated palmitoleic acid, and sample sizes tend to be small. There is no major regulatory or systematic-review body evaluation of isolated omega-7/palmitoleic acid as a supplement ingredient that could be located here.

Where we looked

There was no paper to cite here, so this is the search instead — run it yourself and see what we saw.

PubMed: 27 records · searched September 2026"Omega-7"[Title/Abstract] AND (review[pt] OR "safety assessment"[Title/Abstract] OR "risk assessment"[Title/Abstract] OR toxicology[Title/Abstract] OR toxicity[Title/Abstract] OR characterization[Title/Abstract] OR characterisation[Title/Abstract])
PubMed: 5 records · searched September 2026"Omega-7"[Title/Abstract] AND ("dietary supplements"[MeSH] OR supplementation[Title/Abstract] OR supplement[Title/Abstract] OR supplements[Title/Abstract] OR "oral administration"[Title/Abstract]) AND (randomized controlled trial[pt] OR clinical trial[pt] OR meta-analysis[pt] OR systematic review[pt]) AND humans[MeSH]
PubMed: 202 records · searched September 2026"Omega-7"[Title/Abstract]

This says what this database holds under these terms. It is not a finding that no research exists.

Context

Evidence on sea buckthorn oil specifically appears to exist, but could not be verified here to a citable source distinguishing it from isolated palmitoleic acid. A reviewer looking to resolve this should search for sea buckthorn oil trials on tear film or skin barrier outcomes, rather than generic "omega-7" research.

Rumors

1
Omega-7 from sea buckthorn relieves vaginal dryness.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- SeabuckWonders — a brand: sells sea buckthorn oil supplements and skincare; family owned
  How we know who this is
  “SeabuckWonders maintains the highest of standards for all of our products by using only pure Himalayan , USDA Certified Organic Sea Buckthorn berries.” (their page)
  “With over 30 years of experience, we pride ourselves on producing the highest quality sea buckthorn products in the world.” (their page)
2
Omega-7 supplements help you lose weight by reducing appetite.
Sources cited — check not cleared.
Measured as a biomarker.
- Palmitoleic (16:1 n-7) acid and metabolic health: integrating observational, clinical, and mechanistic evidence (Peer-reviewed) · Funding not clearly stated · Authors declare a conflict of interest
- Effects of a palmitoleic acid concentrated oil on C-reactive protein levels in adults: A randomized, double-blind placebo-controlled clinical trial (Peer-reviewed) · Funded by Wiley Companies (industry) · No conflicts declared
Who’s saying this
- Nutritional Weight & Wellness — a professional body or practice: nutrition counseling by licensed dietitians; also sells courses and NutriKey supplements
  How we know who this is
  “Nutritional Weight & Wellness was founded in 1993 by Darlene Kvist, a pioneering nutritionist whose passion for real food nutrition was deeply personal.” (their page)
  “At Nutritional Weight & Wellness, our licensed dietitians guide you in eating real foods in balance — bringing lasting relief and healing from low energy, hormone imbalance, digestive issues, weight struggles, chronic pain, and more.” (their page)
3
Omega-7 counteracts insulin resistance and improves insulin sensitivity.
Does not support — establishedhealth and safety evidence
Measured as a biomarker.
- Effects of a palmitoleic acid concentrated oil on C-reactive protein levels in adults: A randomized, double-blind placebo-controlled clinical trial (Peer-reviewed) · Funded by Wiley Companies (industry) · No conflicts declared
- Supplementation with Seabuckthorn Oil Augmented in 16:1n–7t Increases Serum Trans-Palmitoleic Acid in Metabolically Healthy Adults: A Randomized Crossover Dose-Escalation Study (Peer-reviewed) · Funded by National Heart, Lung, and Blood Institute of the NIH; Harvard TH Chan School of Public Health; USDA-Agricultural Research Service (government) · Authors declare a conflict of interest
- Palmitoleic (16:1 n-7) acid and metabolic health: integrating observational, clinical, and mechanistic evidence (Peer-reviewed) · Funding not clearly stated · Authors declare a conflict of interest
Who’s saying this
- Nutritional Weight & Wellness — a professional body or practice: nutrition counseling by licensed dietitians; also sells courses and NutriKey supplements
  How we know who this is
  “Nutritional Weight & Wellness was founded in 1993 by Darlene Kvist, a pioneering nutritionist whose passion for real food nutrition was deeply personal.” (their page)
  “At Nutritional Weight & Wellness, our licensed dietitians guide you in eating real foods in balance — bringing lasting relief and healing from low energy, hormone imbalance, digestive issues, weight struggles, chronic pain, and more.” (their page)
4
Taking omega-7 heals dry, cracked or inflamed skin.
We haven’t found evidence strong enough to support this or rule it out.
What was measured is not yet noted.
Who’s saying this
- hsnstore.eu — we couldn’t open the site to see who runs it