Our rating
What we like
- Liposomal delivery on the 60 mg softgels is designed for improved absorption, per the brand
- Fast-dissolve and chewable format on the 40 mg product suits people who dislike swallowing capsules
- Astaxanthin 24 mg softgels hold 4.4 stars from 712+ Amazon ratings
- Antarctic krill oil product rated 4.6 stars from 218+ reviewers
- Sugar-free formulas on the melatonin chewables
Watch out for
- Melatonin doses of 40–100 mg per serving are far above standard clinical recommendations of 0.5–5 mg
- Not for children — melatonin is a hormone and the safety of these doses for minors is not established
- Melatonin at high doses can interact with blood thinners, diabetes medications, and other drugs
- Limited review counts on the 100 mg product (215 ratings) relative to category leaders
What Neviss Sells
Neviss is a modern wellness brand that describes itself as branded in the USA with globally sourced ingredients. Its Amazon catalog is concentrated in three areas: very high-dose melatonin supplements in multiple formats, astaxanthin antioxidant softgels, and omega-3 krill oil. It also lists a liposomal astaxanthin combination product.
Important note before reading further: Neviss’s melatonin products are sold at doses of 40 mg, 60 mg, and 100 mg per serving. Most sleep-support guidelines and sleep researchers recommend starting at 0.5–5 mg. If you are looking for a standard nighttime sleep aid, these products are not standard-dose — please speak with a doctor before purchasing.
The Melatonin Range — Very High Doses
Neviss’s most-reviewed product is a 40 mg chewable melatonin with Vitamin D3, MSM, and selenium. It is sugar-free and sublingual, meaning it is held under the tongue before swallowing. The 40 mg dose alone sets this apart from the overwhelming majority of sleep supplements on the market.
The 60 mg version uses liposomal delivery — a format where the melatonin is encapsulated in lipids to potentially improve absorption. It adds chamomile, D3, and K2 to the formula. The 100 mg product is positioned as an antioxidant and cognitive formula rather than a typical sleep aid.
All three melatonin products carry a consistent caution: talk to a doctor before use, regardless of your familiarity with melatonin at lower doses. These doses are not appropriate for children, and interactions with common medications are well documented. For more typical sleep aid supplements, standard-dose options start well below these levels.
Astaxanthin and Krill Oil
The Astaxanthin 24 mg softgels are Neviss’s second-most-reviewed category, with over 700 Amazon ratings. Astaxanthin is a carotenoid found in marine organisms such as shrimp and salmon; Neviss combines it with coconut MCT oil and grape seed oil in the softgel. The brand also sells a liposomal astaxanthin formula that stacks in lycopene, CoQ10, and lutein.
The Antarctic krill oil product at 1,200 mg is the brand’s highest-rated item by stars (4.6 stars from 218+ reviews). Krill oil delivers omega-3 fatty acids in phospholipid form, which some research suggests is more easily absorbed than standard fish oil triglycerides — the brand attributes this claim to the phospholipid structure noted in its listing.
Shipping, Returns, and Warranty
Neviss sells exclusively through Amazon. All orders are subject to Amazon’s standard shipping, Prime delivery (where listed), and return policies. No direct brand website for purchasing was available at the time of this review. For order or quality questions, contact the seller through Amazon’s messaging system.
Liposomal Astaxanthin Stack
Neviss also offers a liposomal astaxanthin formula that combines astaxanthin with lycopene, CoQ10, lutein, and coconut oil in a single softgel. This is a separate product from the 24 mg standalone astaxanthin and has a smaller review count (37 ratings at time of research). The liposomal delivery format is the same rationale applied to the melatonin softgels — the brand says the lipid encapsulation improves bioavailability compared with a standard oil-based softgel.
CoQ10 and lutein are well-recognised supplements in their own right, and combining them with astaxanthin in one softgel reduces the number of individual products a buyer needs to take. That said, the combined dosing means you cannot adjust one ingredient without changing all of them — a consideration for buyers following a specific dosing protocol.
Who Should Consider Neviss
The clearest use case for Neviss products is a buyer who has already discussed very high-dose melatonin with a healthcare provider and is looking for a specific formulation — particularly the liposomal or chewable sublingual options, which are not universally available from other brands. The astaxanthin and krill oil products stand more independently as general wellness supplements and do not carry the same dose-related considerations.
Neviss is not a suitable brand for anyone looking for a standard 1–5 mg melatonin capsule for occasional sleep support.
Is Neviss Worth It vs. Alternatives?
For standard-dose sleep melatonin, Natrol and Life Extension both offer well-reviewed melatonin products in the 0.5–10 mg range with extensive safety records. Neviss occupies a narrower niche — buyers who specifically want very high-dose melatonin or who have been directed toward that range by a healthcare provider.
For astaxanthin, Sports Research is a competing brand with high review counts and third-party testing certificates publicly displayed. Neviss’s astaxanthin pricing and rating are competitive, but the lack of visible certifications is a factor for buyers who prioritise independent verification.
How We Researched This Review
This review draws on the Neviss Amazon storefront, individual product listing pages, label claims, and publicly available verified customer reviews. No products were purchased or used by FluencyDeals. All dose information comes directly from the product titles and labels as listed on Amazon. We do not make medical claims and strongly recommend consulting a healthcare provider before using any high-dose supplement, including any of the products described above.
Neviss Products Worth a Look
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Melatonin 40 mg — Fast Dissolve & Chewable Sublingual Sleep Supplement, 180 Servings
Chewable sublingual melatonin at 40 mg per serving with added Vitamin D3, MSM, and selenium as labelled; sugar-free and 180 servings per bottle. Rated 4.2 stars from 2,087 Amazon reviews. Talk to a doctor before use — 40 mg is a very high dose.
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Astaxanthin Supplements 24mg — 150 Softgels with Coconut MCT & Grape Seed Oil
24 mg astaxanthin softgels with coconut MCT oil and grape seed oil as listed on the label; 150 softgels per bottle. Earns 4.4 stars from 712+ Amazon ratings.
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Liposomal Melatonin 60 mg — High Potency with Chamomile, D3 & K2, 150 Softgels
Liposomal softgels at 60 mg per serving; the label adds chamomile, D3, and K2. Talk to a doctor before use — this dose is significantly above standard sleep-aid levels. Rated 4.2 stars from 396 reviews.
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Antarctic Krill Oil Omega 3 Supplements 1200 mg — Wild-Caught, 120 Softgels
Wild-caught Antarctic krill oil at 1,200 mg per serving; 120 softgels per bottle. Separate from the melatonin range — this is an omega-3 product. Earns 4.6 stars from 218+ reviews.
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Melatonin 100 mg — High Potency Antioxidant & Cognitive Formula, 75 Softgels
The highest-dose melatonin in the Neviss catalog at 100 mg per softgel; positioned as an antioxidant formula. Talk to a doctor before use. Rated 4.2 stars from 215+ Amazon reviews.
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