Verification Page · Read Before You Buy

You Weren't Wrong About Omega-3s. You Were Wrong About the Bottle.

Molecular form. Fatty acid ratio. Contaminant panel. Compare it line by line against what's on your counter right now — then decide.

EPA & DHA crossing the cell membrane in natural triglyceride form
The 30-Second Version

Most fish oil sold for cats is fractionated — chemically stripped down to isolated EPA and DHA, then bonded to an ethanol molecule. That creates an ethyl ester: a synthetic form a cat's body absorbs 50 to 70 percent less efficiently than the natural triglyceride form found in actual fish.

Fractionation also destroys what surrounds those two fatty acids — the DPA reservoir, the natural astaxanthin, the phospholipids, the intact matrix. What's left is two isolated compounds in a form the body barely recognizes.

And nearly every concentrated oil on the shelf is EPA-dominant, because it was formulated for dogs. Cats need more DHA — the specific fatty acid the feline CKD research identified.

Wrong form. Wrong ratio. Wrong species. That's why the numbers kept climbing.

Line by Line

Revillio vs. the Bottle You've Been Using

Pull your current bottle off the counter. Check the label against this. Most of these specs aren't printed anywhere on a concentrated oil — and that absence is itself the answer.

Specification
Typical Concentrated Fish Oil
Revillio
Molecular Form
Ethyl ester (synthetic)
Natural triglyceride
Relative Absorption
Baseline
4.3× per mg
EPA : DHA Ratio
EPA-dominant (dog)
DHA-dominant (feline)
DPA Reservoir
Destroyed
Preserved
Natural Astaxanthin
Absent
Present
Phospholipids & Matrix
Stripped
Intact
Fish Source
Anchovy / sardine blend
Norwegian salmon
Contaminant Testing
Rarely disclosed
EU-regulated, per batch
Certificate of Analysis
Usually unavailable
Available on request
Vitamin E
Often omitted
AAFCO ratio
Bottle Size
Dog-sized (oxidizes)
100ml, cat-sized
Delivery
Pump / capsule
One pump on food

A higher milligram number on the front of a bottle tells you what went in — not what reaches the kidney.

Switch the Form →

60-day guarantee · Even if the bottle is empty

Verification

You've Been Lied To by a Label Before. So Don't Take Ours.

Every claim in the table above is documented. Here's what backs each one — and how to request it directly.

Per-Batch Certificate of Analysis

Heavy metals, dioxins, PCBs and PFAS screened on every production batch. Request the COA for your batch code and we'll send it.

Norwegian Aquaculture Standards

Norwegian salmon farming operates under EU contaminant regulation with mandatory testing at every stage of production.

Full Fatty Acid Profile

EPA, DHA, DPA and the complete lipid matrix — not just the two numbers a concentrated oil prints on the front.

Molecular Form Confirmed

Natural triglyceride, not ethyl ester. This is the single spec that determines whether the oil is absorbed or passes through.

What to Expect

You've Had Enough Products That Did Nothing. Here's the Honest Timeline.

Nothing here happens overnight. This is the sequence most owners report, and the order matters — appetite moves first, bloodwork moves last.

Days 1–3

The bowl finishes

Palatability shows up immediately or it doesn't. Most cats finish the bowl without warming, tuna water, or coaxing. If your cat refuses it outright, you'll know inside 72 hours — and the guarantee covers that.

Week 2

The routine gets quieter

Both meals finishing consistently. Less standing over the bowl calculating calories. Some owners report the cat arriving in the kitchen before the food does.

Weeks 3–4

Weight and coat

The scale is usually the first hard number to move. Grooming often returns around the same window — the matted or greasy patches soften first.

Weeks 6–8

Bloodwork

This is the panel that matters. Time your next recheck for at least six weeks in. Ask your vet to compare against the trend line, not just the last value — the shape of the slope is the point.

Revillio Norwegian Salmon Oil for Cats
Before You Order

The Questions Every CKD Owner Asks Us

Almost certainly you tried a concentrated ethyl ester. It's what fills the shelf on Amazon and Chewy. The research on omega-3s and feline CKD wasn't conducted with fractionated oil — and a synthetic form absorbed at a fraction of the labeled dose, at a ratio built for dogs, was never going to reproduce those results. The category didn't fail you. The form did.
Revillio is a food-based supplement, not a medication, and it goes on the food rather than into the mouth. That said — your cat's protocol belongs to your vet. Bring the bottle to your next appointment and show them the spec sheet. Most vets have simply never had the triglyceride-versus-ethyl-ester distinction explained to them, because it isn't taught.
This is the question that matters most, and it's the reason whole oil has an advantage that has nothing to do with chemistry. Whole salmon oil is palatable in a way concentrated oil isn't — the fractionation process strips out the compounds that make it smell like fish. No pill. No capsule. No powder. No opening her mouth. One pump on food she's already being offered.
Stop the old one and start this one. There's no taper and no overlap needed — you're replacing a poorly absorbed oil with a well absorbed one, not stacking two products. If your cat is used to a strong fish smell, a couple of days of mixing may help the transition, but most don't need it.
Then you send it back and you pay nothing. 60 days, full refund, even if the bottle is empty. Nobody refunded you for the fourteen months of concentrated oil that didn't work. We will.
Revillio is sold direct only. Third-party storage and handling accelerates oxidation, and an oxidized oil is worse than no oil at all — you're adding oxidative load to organs that already can't clear it. Direct is the only way to guarantee batch, storage, and COA traceability.
The published feline research spans Stage 2 through Stage 3, and the inflammatory cascade omega-3s modulate is present at every stage. Earlier is better — you're interrupting a compounding loop, so the sooner it's interrupted, the fewer nephrons it takes with it. Discuss staging and dosing with your vet.
From CKD Owners

Not Skin-and-Coat Reviews. Kidney Reviews.

★★★★★

"REPLACE WITH REAL REVIEW — pull verbatim from a customer whose cat has CKD. Prioritize ones that mention a bloodwork panel or the vet's reaction."

Customer Name · Verified Purchase
★★★★★

"REPLACE WITH REAL REVIEW — best second slot is one about appetite returning, since that's the #1 daily pain point for this avatar."

Customer Name · Verified Purchase
★★★★★

"REPLACE WITH REAL REVIEW — ideal third slot is someone who explicitly says they'd tried other fish oils first. That review does the most conversion work on this page."

Customer Name · Verified Purchase

Stop Buying the Number.
Start Buying the Oil.

One pump on food, once a day. No pills, no capsules, no powder, no fights. The only part of her CKD routine she'll come running for.

Order Revillio →

60-day money-back guarantee. If she won't eat it, send it back. If you don't see a difference, send it back.

🛡️ 60-Day Guarantee 📦 Free USA Shipping 🇳🇴 Norwegian Sourced · EU Tested 📄 COA Per Batch

© Revillio · These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your veterinarian before adding any supplement to your cat's routine, particularly for cats with existing conditions or on medication.