01 · Product identity

What Is Blue Lotus Extract?

Blue Lotus Extract is produced from the flowers of Nymphaea nouchali var. caerulea, a day-blooming water lily native to the Nile basin and eastern Africa and cultivated for this product in Hainan, southern China. Whole fresh flowers are extracted in water, filtered, concentrated under vacuum and dried to a powder. No ethanol is used at any stage and no carrier is added, so the ratio describes the powder itself rather than the powder plus an excipient. The point at which concentration stops sets the ratio, and the ratio defines the grade.

The product name does a lot of work in this category, which is where most confusion starts. Dried blue lotus flower, meaning the whole flower milled with nothing removed, is routinely listed alongside extract at comparable prices, although the extract has had its insoluble plant tissue discarded and behaves quite differently in a formulation. Separately, N. caerulea, the name almost every quotation uses, is a recognised synonym of N. nouchali var. caerulea [1] — a plant that shares the English word lotus with a species from an entirely different botanical family. Section 04 covers which plant is actually in the drum, which in this category is not a rhetorical question.

02 · Product data

Blue Lotus Extract Grades: 10:1, 30:1, 50:1, 100:1 and 200:1

All five grades come from the same whole flowers and the same water process, and differ only in how far the extract is concentrated before drying. None contains a carrier.

Across all grades: mesh [ ], loss on drying [ ], ash [ ], packed in [1 kg foil bag / 25 kg drum with double PE inner liner], shelf life [ ] in the unopened original packing stored cool, dry and out of direct light. Residual solvents do not apply, since water is the only solvent used. Heavy metals, microbiology and the adulteration panel are set out in section 08.

How to Read a Blue Lotus Ratio

A ratio only carries information when the basis is stated, and most blue lotus quotations do not state it. The same lot is honestly describable as 200:1 or as 20:1 depending on whether the input flowers were weighed fresh or dried, since water lily flowers lose roughly nine tenths of their weight on drying. A carrier such as maltodextrin moves the figure again in the same direction. Ours are quoted on fresh whole flower weight with no carrier in the powder, and the dried equivalents are published above so you can hold our numbers against a supplier quoting the other way.

Every other extract in the PhytoVale range carries a guaranteed assay. Blue lotus does not, and the reason is analytical rather than commercial. The two compounds normally quoted as markers, apomorphine and nuciferine, are not viable assay targets for this material. GC-MS analysis of six authentic N. caerulea extracts produced in industrial settings, alongside eleven commercial products, found both virtually absent from the authentic extract [1]. Independent UHPLC-QTOF-MS profiling of Egyptian material published in 2025 reported the same result, and identified the alkaloids actually present as spermidine conjugates rather than aporphines [2].

No industry-accepted marker assay exists for blue lotus flower extract. A supplier quoting a guaranteed apomorphine or nuciferine percentage is quoting a figure the published literature does not support, and no third-party laboratory will confirm it for you. We report both as not detected, and we would rather you hear that from us than find it during due diligence.

Total phenolic and total flavonoid content are run as internal batch parameters and will be published as guaranteed minima once we have the batch history to stand behind them. Until then, treat the ratio as a process description and not a potency statement.

For buyers comparing ratio extracts with alkaloid-standardized materials, our Blue Lotus Extract vs Nuciferine Extract guide explains why extract ratio, botanical identity and nuciferine assay answer different sourcing questions.

03 · Compliance

Regulatory Status: EU Novel Food, UK, US FDA and Where It May Be Used

This section sits early on the page deliberately. For blue lotus the first question is not what the ingredient does, it is whether it can be used at all, and the answer differs sharply between cosmetic and food applications. We supply this material for cosmetic and fragrance use. The reasoning follows.

European Union

The novel food position follows from Article 3.2(iv) of the regulation, which treats a food produced from a plant as novel unless it has a history of safe food use in the Union. Blue lotus has no established record of significant consumption in the EU before 15 May 1997 and no dossier has been authorised since. A customer placing this material into an EU food or supplement is placing an unauthorised novel food on the market, whatever the supplier's paperwork says.

United Kingdom

Great Britain operates its own novel food regime under the Food Standards Agency, and its own cosmetics regulation, both separate from the EU since exit. The practical outcome at present mirrors the EU position — usable in cosmetics, no food authorisation in place — but it is a separate determination made by a different authority, so treat it as one and have it confirmed separately rather than assuming the EU answer carries across. Northern Ireland follows EU rules for goods.

United States

Other Markets

Blue lotus is prohibited outright in Russia, Poland, Latvia and Lithuania. Most other countries have no legislation naming the plant, which leaves it legal by default rather than positively approved. [Add China, Japan, Korea, Canada, Australia and New Zealand positions as they apply to your customer base.]

For a more detailed market-by-market breakdown, see our Blue Lotus regulatory status guide , which covers US federal and state rules, the EU, UK and other international markets in greater detail.

04 · Identity

Three Different Plants Are Sold as Blue Lotus

Substitution is the largest quality problem in this category, and it is not always deliberate. The naming is genuinely ambiguous in both English and Chinese, and once flowers are dried and milled the three materials are hard to tell apart by eye.

The English word lotus covers two unrelated families, which is where the Nelumbo confusion originates. In Chinese sourcing the term 蓝莲花 covers the first two rows without distinguishing them, so material can change identity in translation without anyone intending it to. Authentic Egyptian material is comparatively scarce, which applies steady commercial pressure toward the Asian substitute.

Where Ours Grows, and Why That Is a Separate Question

Our flowers are cultivated in Hainan, in tropical southern China, where the climate allows flowering across the year rather than in a single seasonal window. Anyone who has just read the second row of that table will reasonably ask whether Asian cultivation and Asian substitution amount to the same thing.

They do not. Origin is where a plant grew. Identity is which plant it is. N. nouchali var. caerulea has been cultivated as an ornamental far outside its native range for well over a century, and a var. caerulea plant grown in a Hainan pond is still var. caerulea — in the same way that vanilla grown in Madagascar is still Vanilla planifolia, a species native to Mexico. Substitution of one taxon for another is a different failure, and it is the one the table is about.

What Asian cultivation does change is where the burden of proof sits. Because the substitute in that second row is itself an Asian plant, an Asian-grown supplier should expect to be asked for identity evidence rather than assertion, and we would rather volunteer it than wait to be asked. The same scepticism is worth pointing the other way as well: wild Egyptian material has become genuinely scarce, so a competing offer of wild-harvested Egyptian flower at commercial tonnage deserves at least as much documentation as this one does.

Cultivation also buys three things wild collection cannot. A finished lot traces back to a pond, a planting and a harvest date. The water the crop grows in is a specified input rather than an inherited one, which matters more than it sounds for an aquatic plant and is covered in section 08. And year-round flowering shortens lead times and narrows the variation between batches.

How Identity Is Confirmed

• Macroscopic and microscopic examination of incoming flower before milling. The cheapest control and the one that catches most substitution, because whole flowers are far easier to judge than powder.
• HPTLC fingerprint against a reference sample, which also picks up gross adulteration with unrelated plant material.
• DNA barcoding of the chloroplast trnL intron, which separates the families and species reliably even in processed material. As an aside, this is the same marker used in the 2024 study that recovered N. nouchali var. caerulea from residue inside a Ptolemaic Egyptian ritual vessel [10], which gives some sense of how little intact material the method needs.

05 · Composition

Key Constituents: Flavonoids, Ellagitannins and Delphinidin Anthocyanins

Before the numbers, one caveat that determines how to read them. The most complete published profile of this plant was generated on air-dried flower extracted with 80% methanol [2]. A commercial water extract carries the water-soluble part of that profile and not the lipophilic part, so the lipid and fatty acid classes in the paper are largely absent from our powder. Read the table below as a description of the plant, not as a specification for the material in your drum. The certificate of analysis reports what was measured on your lot.

That study annotated 185 secondary metabolites across flower, leaf and stem, of which 72 were reported in the species for the first time, and the flower carried the highest content of every phenolic class measured. The classes that survive into a water extract are these.

For reference only, the bulk phenolic figures published for flower material in that study were total phenolics 561.5 mg/g, total tannins 414.0 mg/g and total flavonoids 116.1 mg/g of extract [2]. Those are figures for a methanolic laboratory extract. They are not a specification we offer and not one we can be held to. Earlier isolation work on N. caerulea flowers characterised twenty constituents including acetylated myricetin, quercetin and kaempferol glycosides, naringenin and isosalipurposide [3], and the acylated delphinidin galloylgalactosides were first described in 1999 [4].

The Flower Is Blue. The Extract Is Not.

This catches out more first-time buyers than anything else about the material. The blue colour comes from delphinidin glycosides, and anthocyanins of that type are strongly pH sensitive [2]; they do not survive concentration and drying as a visible blue. A whole-flower water extract is amber to brown as a powder and amber in solution. It will not turn a formula blue, and at higher inclusion in a white base it tints the base beige.

If your product concept depends on a visible blue, this ingredient will not deliver it and a separate colourant is needed. Tell us at enquiry and we will say so before you order rather than after you open the drum.

06 · Evidence level

What the Research Actually Shows, and Where It Stops

The published science on blue lotus is thinner than its marketing suggests. The table states the species, the part and the model for each finding so your regulatory team can judge the distance between the evidence and your product. None of it is a claim for a PhytoVale product.

You will see other studies cited on blue lotus supplier pages: antihyperglycaemic work on N. nouchali rhizome [5], hepatoprotective and anti-inflammatory work on N. alba leaf [6]. Those are different plant parts and, in the second case, a different species. We have deliberately left them out of the table above, because a rhizome result is not evidence about a flower extract, and listing it with a disclaimer attached does not turn it into one.

Two Things to Carry into a Formulation Brief

There are no human studies. Not weak ones, not small ones, none. Every row above is a cell-free assay. Marketing copy implying a demonstrated human effect is running ahead of a literature that does not yet exist, and a reviewer at a retailer or a regulator will establish that faster than you would like.

If you want to separate the commonly reported effects from what has actually been demonstrated, our guide to Blue Lotus effects and active compounds looks at nuciferine, apomorphine, flavonoids and the available evidence without treating isolated-compound pharmacology as proof for the whole extract.

The published safety position is narrow and should be quoted as such. The 2023 assessment concluded that safety data on the plant and its extracts is limited, and that available information does not indicate major safety concerns for topical application of authentic blue lotus flower concrete or absolute when diluted as a fragrance ingredient [1]. That is a statement about diluted topical use of a specific fragrance material. It is not a general safety clearance and should not be presented as one.

Reported Adverse Events

Documented harm from blue lotus is associated with ingestion and inhalation, not topical use. A case series described five active-duty patients presenting to an emergency department with altered mental status after using blue lotus products, four after vaping and one after an infused beverage [8]. Analysis of a confiscated resin used in a rebuildable dripping atomiser reported nuciferine at 4,300 ng/g and no detectable apomorphine [9] — concentrations well below any plausible pharmacological dose by that route, which is itself a clue about what was really in those products. Section 08 covers what forensic laboratories found when they looked.

For readers evaluating Blue Lotus alongside another relaxation-positioned botanical ingredient, our Blue Lotus vs CBD comparison covers the differences in pharmacology, human evidence, safety, regulation, COA requirements and sourcing rather than treating the two ingredients as interchangeable.

07 · Handling

Handling and Formulation Notes

Five things worth knowing before a pilot batch. Grade-to-format guidance is in the table in section 02 rather than repeated here.

Colour. The powder is amber to brown, as covered in section 05. In a white emulsion at 2% it tints the base visibly. Evaluate the shade at your target inclusion in your own base, not in water, because water tells you very little about how it will read in an emulsion.

pH and shade stability. The anthocyanins present are delphinidin glycosides and are pH sensitive [2]. Expect the shade of the finished product to depend on formula pH and to drift over shelf life, most visibly in transparent packaging exposed to light. If your brand holds a tight colour tolerance, run accelerated stability in the actual pack before signing off the formula.

Water phase and heat. Water extracted and carrier-free, so it disperses into the water phase without a wetting aid. Add after the hot stage wherever your process allows; prolonged heating darkens the colour.

Preservation. A water-soluble botanical extract supplied with no added preservative raises the microbial load your preservative system has to carry. Confirm coverage at your intended inclusion before challenge testing the complete formula, not after.

Odour. [Describe the actual odour of your material at 1% in water and in a neutral cream base, and say whether it is detectable in a fragranced formula. This is the single most requested piece of information at sampling stage and almost no supplier publishes it.]

08 · Quality control

Batch Testing and Adulteration Screening

Most supplier pages leave this section out. For blue lotus it is the one that matters most, because the material has a documented adulteration problem that has nothing to do with the plant and everything to do with what has been sold under its name.

What Forensic Laboratories Have Been Finding

Between May 2020 and December 2023 the US Army Criminal Investigation Laboratory received 29 seized drug cases in which the case history mentioned blue lotus or valerian root. In 90% of those cases at least one exhibit contained one or more synthetic cannabinoids. Over the same period the Armed Forces Medical Examiner System handled 65 toxicology cases containing synthetic cannabinoids or their metabolites where blue lotus appeared in the case history. The compounds identified most often across both laboratories were 5F-MDMB-PICA, ADB-BUTINACA and MDMB-4en-PINACA. The authors noted that innocuous branding can lead investigators and clinicians to attribute sedation, slurred speech and hallucinations to the plant's own alkaloids when the cause is an undeclared synthetic [7].

That describes the finished-product market, vaping products in particular, rather than raw material supply. It is nonetheless why blue lotus attracts scrutiny that other botanical extracts do not, why we screen for these compounds on every lot, and why we do not supply this material for inhalation applications at all.

Testing Panel

Heavy Metals Matter More on an Aquatic Crop Than on a Field Crop

Water lilies are used in water purification and constructed wetland systems. That is a statement about what the plant does with its growing medium rather than a marketing point. The rhizome sits in pond sediment and the plant draws from the water column, so the heavy metal profile of a harvest is determined largely by the water body it grew in.

For wild-collected material that is largely uncontrollable. The variable sits upstream of anything the processor can influence, and a clean result from one harvest does not predict the next. Cultivation changes the picture, because the water becomes an input that can be specified rather than one that is inherited. Our flowers grow in managed ponds in Hainan (section 04), which is the main reason we can treat this as a control point instead of a lottery.

It does not remove the need to test. Ask any supplier, including us, for ICP-MS results on the lot being shipped rather than a historic certificate from a previous season. We test every lot [by third-party lab name].

09 · B2B qualification

Supplier Qualification: Eight Questions and Our Answers

Eight questions worth putting to any blue lotus supplier, including us. Our answers are in the right column so you can hold us to them in writing.

If a supplier will not answer the second and fourth questions in writing, the price comparison you are running is not like for like. Two powders both quoted at 200:1 can differ by an order of magnitude in how much flower is actually behind them.

Documentation Supplied With Every Shipment

Lot-specific certificate of analysis with the test method named against each result, species identity report, synthetic cannabinoid screening report, full specification sheet, safety data sheet, manufacturing flow chart with critical control points marked, signed allergen and GMO statements, and the traceability record linking the finished lot to its harvest batch. Samples ship with the same document set, so you can run your incoming specification against it before committing to an order.

10 · Questions

Ordering, Compliance and Customisation FAQ

11 · Evidence base

References

[1] Dosoky NS, Shah SA, Dawson JT, Sharma Banjara S, Poudel A, Bascoul C, Satyal P. Chemical composition, market survey, and safety assessment of blue lotus (Nymphaea caerulea Savigny) extracts. Molecules. 2023;28(20):7014. DOI: 10.3390/molecules28207014 →

[2] Younis IY, Essa AF, El-Newary SA, Elgamal AM, Farag MA, Mohsen E. Unravelling Egyptian blue lily (Nymphaea nouchali) organs' metabolome via UHPLC/PDA/ESI-QTOF-MS and in relation to their antioxidant and anti-cholinesterase effects. Scientific Reports. 2025;15:44136. DOI: 10.1038/s41598-025-30937-y →

[3] Agnihotri VK, ElSohly HN, Khan SI, Smillie TJ, Khan IA, Walker LA. Antioxidant constituents of Nymphaea caerulea flowers. Phytochemistry. 2008;69(10):2061–2066. DOI: 10.1016/j.phytochem.2008.04.009 →

[4] Fossen T, Andersen ØM. Flavonoids from blue flowers of Nymphaea caerulea. Phytochemistry. 1999;51(9):1133–1137. Companion paper on the acylated delphinidin galloylgalactosides: Phytochemistry. 1999;50(7):1185–1188.

[5] Anand A, Kumar V, Bora P, et al. Phytometabolomic analysis of boiled rhizome of Nymphaea nouchali (Burm. f.) using UPLC-Q-TOF-MS^E, LC-QqQ-MS and GC–MS and evaluation of antihyperglycemic and antioxidant activities. Food Chemistry. 2021;342:128313. DOI: 10.1016/j.foodchem.2020.128313 →

[6] Bakr RO, El-Naa MM, Zaghloul SS, Omar MM. Profile of bioactive compounds in Nymphaea alba L. leaves growing in Egypt: hepatoprotective, antioxidant and anti-inflammatory activity. BMC Complementary and Alternative Medicine. 2017;17:52. DOI: 10.1186/s12906-017-1561-2 →

[7] Seither JZ, Karschner EL, Jackson KR, Deakin A, Roper SH, Walterscheid JP. Synthetic cannabinoid identification in cases associated with blue lotus and valerian root vaping products. Journal of Analytical Toxicology. 2024;48(8):557–565. DOI: 10.1093/jat/bkae065 →

[8] Schimpf M, Ulmer T, Hiller H, Barbuto AF. Toxicity from blue lotus (Nymphaea caerulea) after ingestion or inhalation: a case series. Military Medicine. 2023;188(7-8):e2689–e2692. DOI: 10.1093/milmed/usab328 →

[9] Poklis JL, Mulder HA, Halquist MS, Wolf CE, Poklis A, Peace MR. The blue lotus flower (Nymphea caerulea) resin used in a new type of electronic cigarette, the re-buildable dripping atomizer. Journal of Psychoactive Drugs. 2017;49(3):175–181. PMC5638439 →

[10] Tanasi D, van Oppen de Ruiter BF, Florian F, et al. Multianalytical investigation reveals psychotropic substances in a Ptolemaic Egyptian vase. Scientific Reports. 2024;14:27891. DOI: 10.1038/s41598-024-78721-8 →

Research is cited to describe the published science on Nymphaea nouchali var. caerulea and related Nymphaea species. It is not a claim about any PhytoVale product, and it does not constitute a cosmetic claim under Regulation (EC) No 655/2013, a health claim under Regulation (EC) No 1924/2006, or any equivalent national rule.