Why the quiet, consistent habits matter more than any single miracle ingredient.
For years, the conversation was all about anti-ageing. Today, a new concept is reshaping the way we think about skin health: skin longevity.
Instead of focusing on reversing age, skin longevity is about maintaining the skin's natural function, resilience and structure for as long as possible. That is why current research looks beyond a single ingredient. Sun exposure, pollution, sleep, nutrition, stress and collagen metabolism all play a role in how our skin ages. Dermatologists call this collection of influences the skin ageing exposome, and the encouraging part is that many of these factors sit within our control.
Nutrition is one of them. And when it comes to the fats that feed our skin, few have been studied as closely as Omega-3.
What Omega-3 does in the skin
The long-chain Omega-3 fatty acids, EPA and DHA, are found most abundantly in oily, cold-water fish. Once eaten, they are incorporated into the membranes of our cells, including those of the skin, where they help shape how cells respond to stress and inflammation.
That matters because so much of what ages skin is driven by low-grade, repeated stress: chiefly ultraviolet light, but also pollution and the general wear of daily life. Researchers at the University of Manchester have spent years examining whether Omega-3 can help the skin cope with sun exposure. Their review describes Omega-3 as a promising candidate for nutritional photoprotection, acting through several biological pathways at once.
In a three-month randomised controlled trial of 79 adults, those taking an EPA-rich Omega-3 supplement showed less sun-induced suppression of the skin's immune response than those taking a control oil. The researchers were careful to add that Omega-3 is no substitute for sunscreen and shade, but rather a small additional layer of support. We think that is exactly the right way to see it.
A wider review of fish oil and the skin reaches a similarly measured conclusion: the laboratory and early clinical findings are encouraging, but well-designed human trials are still limited. Omega-3 is not a cure. It is part of a foundation.
Where collagen fits in
Collagen remains one of the most researched topics in this space, not because it is a miracle solution, but because it is one of the skin's primary structural proteins. Its triple-helix structure gives the dermis much of its strength and spring, and its gradual decline with age is one of the reasons skin becomes thinner and less elastic over time.
Whether drinking collagen supplements meaningfully changes that picture is still genuinely debated. Some trials and meta-analyses have reported modest improvements in hydration and elasticity, while a 2026 re-analysis of that same body of evidence found the benefits did not hold up once methodological errors and dose were accounted for. In short, the science is still settling.
What is not in question is that the body builds its own collagen from the protein, vitamins and minerals in a varied diet, and that protecting existing collagen, chiefly from the sun, remains the best-supported strategy of all.
Food first: the Fishwives way
We have always believed that the most sustainable habits are the ones you genuinely enjoy. Rather than counting milligrams, we would encourage you to simply eat good oily fish regularly, and to eat a variety of it.
- New Zealand King Salmon: raised in cool, fast-flowing alpine waters, with a naturally high oil content and a rich, buttery texture. The most indulgent of our salmon and naturally rich in Omega-3.
- Organic Canadian Chinook Salmon: certified organic and raised by Creative Salmon in British Columbia. Rich, clean and firm, and a beautiful centrepiece when roasted as a whole side.
- Wild Alaskan Sockeye Salmon: line-caught in Alaska's managed fisheries. Leaner and more pronounced, with a deep red colour that comes from astaxanthin, a naturally occurring antioxidant.
- Petuna Ocean Trout: flown in fresh from Macquarie Harbour, Tasmania, with deep coral flesh, a silky texture and rich Omega-3 content.
Not sure where to begin? Our guide, Which Salmon is Right for You?, compares each variety by flavour, texture and Omega-3 profile.
Honouring the whole fish
Collagen lives in the parts of the fish we too often discard. NZ King Salmon Bones simmered gently with onion, fennel and herbs make a clean, deeply comforting broth, the foundation for congee, chowder or ramen. NZ King Salmon Skin, brushed with olive oil and roasted until golden, becomes a crisp, savoury snack. It is a philosophy we explore further in The Beauty of the Whole Fish.
How we love it
Brush a portion of King Salmon with white miso, a little maple syrup and grated ginger, then roast until the edges caramelise. Our Glazed Salmon with Miso and Orange is a weeknight favourite, while Healthy Salmon Furikake makes a quick, nourishing dinner for one.
A note on doneness: salmon is at its best cooked gently, just until it flakes and remains slightly translucent at the centre. Overcooking dries the flesh and dulls its natural richness.
And yes, frozen counts
A few well-handled frozen portions in the freezer will do far more for your diet than fresh fish bought with good intentions and never cooked. Properly frozen at source, fish retains its texture and quality, which is why we explain our approach in Why IQF and Blast Freezing Matter. Thaw overnight in the refrigerator, pat dry and cook as you would fresh.
Building habits that last
When it comes to healthy skin, the goal is not to chase perfection. It is to build habits that stand the test of time: protecting your skin from the sun, sleeping well, managing stress, and eating well, with good fish on the table every week. Skin longevity, like good cooking, rewards patience and consistency.
Explore our full range of sustainably raised salmon and bring a little more Omega-3 to your table this week.
Further reading from The Fishwives
- Which Salmon is Right for You? - four varieties, compared by flavour, texture and Omega-3.
- The Beauty of the Whole Fish - broths, crisp skin and less waste.
- Salmon vs. Trout - a closer look at two cold-water favourites.
- What Clean Food Really Means - our thinking on sourcing and minimal processing.
- Fish Recipes - simple ways to put more good fish on the table.
Scientific references
- Krutmann J, Bouloc A, Sore G, Bernard BA, Passeron T. The skin aging exposome. Journal of Dermatological Science. 2017;85(3):152-161. doi:10.1016/j.jdermsci.2016.09.015
- Pilkington SM, Watson REB, Nicolaou A, Rhodes LE. Omega-3 polyunsaturated fatty acids: photoprotective macronutrients. Experimental Dermatology. 2011;20(7):537-543. doi:10.1111/j.1600-0625.2011.01294.x
- Pilkington SM, Massey KA, Bennett SP, et al. Randomized controlled trial of oral omega-3 PUFA in solar-simulated radiation-induced suppression of human cutaneous immune responses. American Journal of Clinical Nutrition. 2013;97(3):646-652. doi:10.3945/ajcn.112.049494
- Huang TH, Wang PW, Yang SC, Chou WL, Fang JY. Cosmetic and therapeutic applications of fish oil's fatty acids on the skin. Marine Drugs. 2018;16(8):256. doi:10.3390/md16080256
- Shoulders MD, Raines RT. Collagen structure and stability. Annual Review of Biochemistry. 2009;78:929-958. doi:10.1146/annurev.biochem.77.032207.120833
- Proksch E, Segger D, Degwert J, Schunck M, Zague V, Oesser S. Oral supplementation of specific collagen peptides has beneficial effects on human skin physiology: a double-blind, placebo-controlled study. Skin Pharmacology and Physiology. 2014;27(1):47-55. doi:10.1159/000351376
- de Miranda RB, Weimer P, Rossi RC. Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta-analysis. International Journal of Dermatology. 2021;60(12):1449-1461. doi:10.1111/ijd.15518
- Grimes DR, Mahto A. Hydrolyzed collagen for skin aging meta-analyses are unreliable. Journal of Cosmetic Dermatology. 2026;25(10):e71208. doi:10.1111/jocd.71208
- Haykal D. Translating geroscience into clinical longevity dermatology: from mechanisms of aging to skin-centered interventions. Journal of Cosmetic Dermatology. 2025. doi:10.1111/jocd.70616
This article is for general information only and is not medical advice. Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle.
