Nusava Review 2026: Are These Liquid B12 Drops Worth It?

Mike Published October 5, 2026

Our rating

Highly Recommended

What we like

Liquid sublingual format may improve absorption for people with digestive absorption issues, per the brand
Extra-strength 10,000 mcg B12 drops hold 4.6 stars from 546+ Amazon ratings
Methylated form (methylcobalamin) used in the B12 drops — labelled vegan and non-GMO
Mocha-flavoured D3/K2 drops make the vitamin more palatable than unflavoured capsules
Raspberry flavour on B12 drops appeals to people who find supplement flavours unpleasant

Watch out for

Relatively small review counts on newer products (under 250 ratings on most)
Liquid format requires refrigeration after opening on some products — check the label
No publicly listed third-party testing certificates at time of research

What Nusava Sells

Nusava is an Amazon-native supplement brand built around liquid and drop-format vitamins. Its mission, as stated on its storefront, is to deliver clean, science-backed supplements that integrate easily into daily life. The current catalog focuses primarily on B12 drops in multiple strengths, methylated B-complex liquids, D3/K2 combinations, and a mood-support saffron gummy.

Unlike many supplement brands that lead with capsules, Nusava’s flagship products are all in liquid or drop formats — a distinction that matters to buyers who have difficulty swallowing pills or who want a formula that bypasses standard digestion.

The B12 Liquid Drop Range

The centrepiece of the Nusava lineup is its best B12 supplements category entry: a sublingual B12 drop at 10,000 mcg per serving. Sublingual delivery places the liquid under the tongue, where it absorbs through the mucous membranes. The brand uses methylcobalamin — the bioactive form of B12 the body can use without conversion — in both the 10,000 mcg and 5,000 mcg versions.

The two-bottle pack format means buyers get a larger supply upfront, which works well for people using drops daily. The raspberry flavour is consistently mentioned in customer reviews as mild rather than overpowering.

Methylated B-Complex and D3/K2

Beyond standalone B12, Nusava offers a full methylated B-complex in the same raspberry liquid format. This covers all eight B vitamins in their methylated, bioavailable forms — relevant for people who have genetic variations affecting B-vitamin metabolism, though the brand makes no disease-claim about this.

For vitamin D and K2, Nusava offers two formats: a mocha-flavoured liquid with MCT oil (which aids absorption of fat-soluble vitamins) and a softgel that adds omega-3 from chia oil. The softgel is a newer product with a small review count, so buyers should monitor it accordingly.

Shipping, Returns, and Warranty

Nusava products are fulfilled through Amazon, so all standard Amazon shipping options apply, including Prime delivery on eligible listings. Returns are handled through Amazon’s return window as shown on each listing page. The brand does not appear to operate a standalone retail website. For product questions or quality issues, contact the seller via Amazon’s messaging system.

Why Liquid Format Matters for B12

B12 deficiency affects a meaningful share of adults over 50 and people following plant-based diets, both groups for whom absorption through the standard digestive route can be compromised. Conditions like atrophic gastritis reduce intrinsic factor — a protein the gut needs to absorb B12 — making standard oral tablets less effective. Sublingual delivery bypasses this pathway.

Nusava’s 10,000 mcg dose is high by design: sublingual absorption is typically a fraction of the label amount, so a higher-labelled dose is intended to deliver a meaningful effective amount. This is standard practice across sublingual B12 brands, not specific to Nusava. If you have a known B12 absorption issue, getting a blood test before and after supplementation is the only reliable way to know whether any supplement is working for your specific situation.

Mood and Stress Support

Nusava has expanded beyond the B12 core with a saffron gummy that stacks saffron extract with rhodiola rosea, L-theanine, and L-tyrosine. The brand positions this as a mood and calm supplement. This product is newer with fewer than 30 Amazon ratings at time of research, so the review track record is limited. Saffron has been studied for mood and appetite modulation, and the brand attributes its benefits to the saffron extract specifically — it does not make disease-treatment claims.

The D3/K2 softgel with omega-3 from chia oil is also a recent addition to the Nusava lineup. It occupies a different category from the liquid drops: a standard softgel for buyers who prefer capsule format for their fat-soluble vitamin intake. Only 8 reviews at time of research; worth watching as the product matures.

Is Nusava Worth It vs. Alternatives?

MaryRuth’s is a widely stocked liquid B12 brand with broader retail distribution and more publicly available certifications. Carlyle offers sublingual B12 tablets at competitive prices. Nusava’s advantage is the two-pack format (lower per-bottle cost), the mocha D3/K2 combination, and the methylated B-complex liquid, which is a less common format than capsules.

If liquid vitamins are important to you and you want methylcobalamin specifically, Nusava is a reasonable choice backed by a growing Amazon review base.

How We Researched This Review

This review is based on Nusava’s Amazon storefront, individual product listing pages, label information, and publicly available verified customer reviews. No products were purchased or used by FluencyDeals. No products were used or evaluated in person. All facts about the brand and formulas come directly from the brand’s own descriptions; no independent lab testing was verified. Nusava also sells directly at nusava.com, though its primary retail presence is Amazon. Pricing, availability, and return terms on Amazon are governed by Amazon’s policies and may change; always check the current listing for the most up-to-date details.

Nusava Products Worth a Look

NUSAVA Extra Strength B12 Liquid Drops 10000mcg, Raspberry, Pack of 2

Sublingual B12 drops at 10,000 mcg per serving in a raspberry flavour; sold as a two-bottle pack. Earns 4.6 stars from over 546 Amazon ratings.
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NUSAVA Vitamin B12 Liquid Drops 5000mcg — Sublingual with B6 & B Complex

A lower-dose B12 liquid at 5,000 mcg that adds B6 and a full B-complex; the label states methylcobalamin form, vegan and non-GMO. Rated 4.5 stars from 428+ Amazon reviews.
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NUSAVA Methylated B Complex Liquid Drops, Raspberry, Pack of 2

A full methylated B-complex in liquid form with a raspberry taste; the two-pack format stretches the supply. Rated 4.6 stars from 231 Amazon reviewers.
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NUSAVA Organic Vitamin D3 K2 Drops with MCT Oil, Mocha, Pack of 2

D3 and K2 in a liquid form with MCT oil for fat-soluble absorption; mocha flavour blends easily into coffee or smoothies. Rated 4.0 stars from 190 Amazon ratings.
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NUSAVA Vitamin D3 K2, 5000 IU, Softgels, with Omega 3 & Chia Oil, 120 Ct

A softgel alternative to the D3/K2 drops that adds omega-3 fatty acids via chia oil; 5,000 IU D3 per softgel as listed on the label. Rated 4.7 stars from 8 early Amazon reviews.
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Frequently Asked Questions

What makes sublingual B12 drops different from a standard B12 tablet?

Sublingual drops are placed under the tongue and absorbed through the mouth's mucous membranes rather than processed through the digestive tract. Nusava says this delivery method may be beneficial for people with digestive absorption challenges, though the degree of benefit varies by individual. Consult a healthcare provider to determine which form is right for you.

Is Nusava's B12 in methylcobalamin or cyanocobalamin form?

The B12 Liquid Drops and the Methylated B Complex use methylcobalamin, as labelled on the product. Methylcobalamin is the form the body uses directly. The D3/K2 softgel does not contain B12.

Are Nusava supplements vegan?

The B12 liquid drops and B-complex drops are labelled vegan and non-GMO. The D3/K2 softgels contain an oil base; check the individual listing label for vegan status before purchasing.

Should I take B12 if I'm pregnant or on medication?

As with any dietary supplement, check with your doctor before taking Nusava products during pregnancy, while breastfeeding, or alongside prescription medications. B12 at very high doses can interact with certain drugs.

Why is the dose so high — 10,000 mcg of B12?

High-dose B12 is common in the sublingual format because only a fraction of what is placed under the tongue is absorbed. The brand sets the dose at 10,000 mcg based on their formulation; the appropriate dose for your situation is a question for a healthcare provider.

How does the raspberry flavour taste?

Customer reviews on Amazon describe the raspberry flavour as mild and pleasant, but taste is subjective. The drops are intended to be placed under the tongue for 30 seconds before swallowing, per standard sublingual instructions.

Does the D3/K2 Mocha drops product need refrigeration?

Check the individual product label for storage instructions, as liquid oil-based supplements sometimes require refrigeration after opening. This detail was not confirmed independently at the time of research.