IngredientsDecaglycerol monolaurate (abbreviated variously as DGML, ML-750, or PG10ML) is a polyglycerol ester of fatty acids belonging to the broader chemical family of polyglyceryl fatty acid esters (PGFAEs). It is known in cosmetic and food ingredient nomenclature as Polyglyceryl-10 Laurate and appears as a yellowish to amber-colored liquid; it is an ester of lauric acid and polyglycerin-10, which is derived from the polymerization of glycerin. The compound carries the CAS registry number 34406-66-1 and the IUPAC systematic name dodecanoic acid, monoester with decaglycerol.
Other documented synonyms include: Dodecanoic acid, monoester with decaglycerol; Decaglycerin monolaurate; Monoester with dodecanoic acid; Laurate polyglyceryl-10; and Polyglycerol-10 Laurate.
The compound used in scientific study (commercially designated ML-750) is a mixture of polyglycerols bound with lauric acid; the designation "decaglycerol monolaurate" reflects that the molar ratio of the glycerol residue to lauric acid is approximately 10. The backbone is a linear chain of ten glycerol units joined by ether linkages, esterified at a single hydroxyl position with the C-12 saturated fatty acid, lauric acid (dodecanoic acid). The decaglycerol backbone itself has a molecular weight of 758 and the compositional formula C₃₀H₆₂O₂₁.
Natural fatty acid source: The lauric acid moiety is derived predominantly from plant oils. Lauric acid is derived primarily from coconut and palm oils and has been utilized in traditional contexts for centuries, particularly for its antimicrobial and antiviral properties. Commercial-grade lauric acid for industrial esterification is typically sourced from coconut oil or palm-kernel oil, both of which are rich in C-12 saturated fatty acid chains.
Physical form and commercial preparations: Polyglyceryl-10 Laurate (decaglycerol monolaurate) is a common ingredient used in the personal care and cosmetic industry as an emulsifier and surfactant, appearing as a yellowish to amber-colored liquid. In food and emulsion research, it is commercially supplied under trade names such as SY-Glyster® ML-750 (Sakamoto Yakuhin Kogyo, Osaka, Japan), Decaglyn 1-L, and Sunsoft® Q-12S. Decaglycerol monolaurate (SY-Glyster® ML-750) is supplied by Sakamoto Yakuhin Kogyo; related products such as pentaglycerol monolaurate (Sunsoft® A-12E) and decaglycerol monomyristate (Sunsoft® Q-14S) are supplied by Taiyo Kagaku, Japan.
Polyglycerol esters of fatty acids (PGEs) are a class of synthetic, nonionic surfactant frequently used in food, pharmaceutical, and cosmetic industries on account of their amphiphilic properties. The hydrophilic part of these amphiphiles consists of oligomeric esters of glycerol, and the hydrophobic part consists of alkyl chains of varying length and degree of unsaturation.
Polyglycerol esters of the nonionic type exhibit a broad range of polarity or hydrophilic-lipophilic balance (HLB) values, ranging from 6 to 11 compared with many other food emulsifiers; this broad range makes them a versatile emulsifier for food applications. Decaglycerol monolaurate occupies the upper end of this hydrophilicity spectrum. Research on emulsifier selection based on HLB identifies decaglycerol monolaurate as a secondary/hydrophilic emulsifier with an HLB value of around 12, reflecting water affinity to provide stable oil-in-water emulsions. Other sources cite an HLB value as high as 14.8–15.7. In laboratory synthesis employing decaglycerol reacted with lauric acid under alkali catalysis at 230°C, the resulting decaglycerol laurate was found to have an HLB of 15.7.
In terms of surface activity, the surface tension of water is reduced to 33 mN·m⁻¹ at a concentration magnitude of 10⁻⁵ g/mL by decaglycerol laurates. When used as a nonionic surfactant, decaglycerol monolaurate (ML-750) enabled fine emulsions with a median oil droplet diameter of 100 nm or less to be successfully prepared at a concentration of 0.083% (w/v) or higher.
The amphiphilic properties of polyglycerol esters in water exhibit mesomorphic activities, forming liquid crystalline structures. This property is relevant to its stabilizing function in both food matrices and pharmaceutical delivery systems.
Decaglycerol laurates have been widely used as emulsifiers in food, medicine, and cosmetic industries for many years, and are currently synthesized conventionally using alkaline catalysts under stringent conditions.
The conventional route involves two stages: first, polymerization of glycerol to decaglycerol under alkaline catalysis and high temperatures, followed by esterification of the decaglycerol backbone with lauric acid. PGEs are produced by polymerization of glycerol in the presence of an alkaline catalyst followed by esterification with fatty acids; fatty acids may be sourced from corn oil, cottonseed oil, lard, palm oil, peanut oil, sesame oil, sunflower oil, soybean oil, and others. The resulting commercial product is not a single pure compound but a mixture, with the monolaurate species as the predominant component.
A greener alternative using enzymatic catalysis has been described in the scientific literature. Decaglycerol laurates were prepared through a green lipase-catalyzed process, employing the transesterification of methyl laurate with decaglycerol by the immobilized lipase Novozym 435. Optimal conditions for this process were: reaction temperature 65°C, a laurate/decaglycerol molar ratio of 2:1, an oscillating speed of 180 rpm, an enzyme dosage of 8 wt.%, initial water content of 5.0 wt.%, and reaction time of 4.5 hours, with 84.4% conversion of methyl laurate. The products were mainly composed of polyglycerol monoesters with polymerization degrees ranging from 2 to 10, and a few polyglycerol diesters were observed, indicating that the enzymatic transesterification has excellent monoester selectivity.
The purity of the monolaurate species in commercial decaglycerine monolaurate compositions has been characterized analytically. A decaglycerine monolaurate composition prepared via glycidol-based synthesis was found to contain 77.2% monolaurate of polyglycerine by HPLC analysis.
Decaglycerol monolaurate as a defined chemical entity is a product of twentieth-century food and chemical technology. Polyglycerol esters have been used as food additives in Europe and America since the 1940s, and were approved for food use in the United States in the 1960s. The compound therefore lacks a pre-industrial traditional use record as an isolated substance.
Decaglycerol monolaurate is a polyglycerol ester derived from lauric acid and decaglycerol, historically used as part of the broader class of polyglycerol esters which have been employed for decades in food technology to stabilize emulsions, improve texture, and enhance the bioavailability of nutrients in processed foods.
The pure compound itself is a modern innovation; however, its components have deep roots in traditional remedies — lauric acid, derived primarily from coconut and palm oils, has been utilized in folk medicine for centuries, particularly for its antimicrobial and antiviral properties. Coconut oil has a documented history of use in Southeast Asian and Pacific Island culinary and medicinal traditions, where its fatty acid composition (approximately 50% lauric acid) was empirically exploited in topical and dietary applications.
In modern food technology, fatty acid esters of polyglycerine have been permitted as food additives such as emulsifiers; they have been employed in a variety of fields particularly as emulsifiers or agents for adjusting viscosity, because esters having a wide range of HLB values can be obtained by combining polyglycerines of various molecular weights with fatty acids of various chain lengths, and the compounds exhibit higher stability in acidic pH ranges.
Decaglycerol monolaurate is itself a single class of amphiphilic molecule rather than a botanical extract with multiple constituents. Its biological and functional properties derive from the two structural moieties it incorporates upon hydrolysis:
Absorption of intact polyglycerol fatty acid esters (PEFA) in the gastrointestinal tract is extremely low; PEFA is rapidly and almost fully hydrolysed to polyglycerols and fatty acids in the gastrointestinal tract, and the safety of polyglycerols and specific fatty acids has recently been assessed with no adverse effects identified in available studies.
Polyglyceryl-10 Laurate is an ester of lauric acid and polyglycerin-10 derived from the polymerization of glycerin; it helps to stabilize oil and water mixtures, allowing for the creation of stable emulsions. At the molecular level, the C-12 acyl chain orients into the hydrophobic oil phase, while the extended, polyhydroxylated decaglycerol chain protrudes into the aqueous phase, forming a stabilizing monolayer at the oil–water interface that reduces interfacial tension and prevents droplet coalescence. The amphiphilic properties of polyglycerol esters in water exhibit mesomorphic activities, forming liquid crystalline structures, which further stabilize emulsion systems.
The antimicrobial properties of decaglycerol monolaurate and its shorter-chain polyglycerol homologues have been investigated in vitro. The mechanism is primarily attributed to membrane disruption. The underlying mechanism was investigated by assessing cell membrane permeability, integrity of cell membrane, and morphology; the conclusion was that polyglycerol monolaurates eliminate Gram-positive bacteria by disrupting the cell membrane, thereby increasing cell membrane permeability, releasing cellular contents, and altering cell morphology.
This mechanism parallels that proposed for the simpler monoglyceride, glycerol monolaurate (GML). The widely recognized action mode for monoglycerides is that the hydroxyl group is adsorbed to the polar part of the cell membrane surface with the acyl carbon chain inserting into the hydrophobic region of the membrane, then moving across the phospholipid bilayers driven by hydrophobic interaction, resulting in cell membrane perforation and ultimately cell death.
Within the polyglycerol monolaurate series, antimicrobial potency is inversely related to the length of the polyglycerol chain: the shorter the glycerol backbone, the higher the antimicrobial activity. The minimum inhibitory concentration (MIC) of diglycerol monolaurate (PG2ML), triglycerol monolaurate (PG3ML), hexaglycerol monolaurate (PG6ML), and decaglycerol monolaurate (PG10ML) against Staphylococcus aureus was 0.16, 0.32, 0.63, and 1.25 mg/mL, respectively. The MIC of PG2ML, PG3ML, PG6ML, and PG10ML against Bacillus subtilis was 0.32, 0.63, 1.25, and 3.75 mg/mL, respectively. Thus, decaglycerol monolaurate (PG10ML) consistently shows the lowest potency within the series, consistent with its most hydrophilic character reducing membrane affinity.
No apparent antimicrobial effect of any of the four polyglycerol monolaurates, including decaglycerol monolaurate, was observed on E. coli and Pseudomonas aeruginosa even at concentrations up to 10.00 mg/mL, indicating that the antimicrobial activity is confined to Gram-positive species, consistent with the additional outer membrane barrier in Gram-negative organisms limiting surfactant penetration.
Evidence level: Substantial; primarily in vitro, physicochemical, and applied food science studies.
Physical stability of highly viscous oil-in-water emulsions (models of cosmetic creams) containing 80 wt.% oil has been studied, formulated with decaglycerol monolaurate (DGML) as surfactant and sucrose as viscosifier; among formulas tested, the emulsion-gel containing 7% DGML with 4.5% sucrose showed the best performances as regards shelf stability, ease of use, and handling.
In water-in-oil-in-water emulsion research, polyglycerol monolaurate was used in the outer-phase solution at 1–10% (w/v), and the median diameter of oil droplets in the W/O/W emulsion reached a minimum value at 3% (w/v) decaglycerol monolaurate (ML-750), remaining constant above 4% (w/v).
Research on milk coffee beverages found that a sucrose monoester with a high HLB and a diglycerol monoester accelerated milk separation, whereas the decaglycerol monoester controlled the milk separation. This illustrates the practical role of decaglycerol monolaurate as a stabilizer in complex, protein-rich beverage systems. In encapsulation studies, Milli-Q water containing 1% (w/w) decaglycerol monolaurate (ML-750) was used as the continuous phase in microchannel emulsification for encapsulating bioactive lipids.
Polyglycerol esters provide long-time stability of whipping properties, making them an excellent choice for cake mixes; they can also form emulsion systems with a high amount of water, thus reducing the overall caloric content of a food product.
Evidence level: In vitro only (for decaglycerol monolaurate specifically); no dedicated human clinical trials identified for this specific compound.
The most relevant comparative study (published in the Journal of Oleo Science, 2021, indexed in PubMed) specifically examined decaglycerol monolaurate (PG10ML) alongside three shorter polyglycerol monolaurate homologues. The antimicrobial effect of four polyglycerol monolaurates against two Gram-positive bacteria (Staphylococcus aureus and Bacillus subtilis) and two Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa) was investigated. As noted above, decaglycerol monolaurate (PG10ML) was the least potent among the series against Gram-positive bacteria, and showed no detectable activity against Gram-negative species at concentrations up to 10 mg/mL. This is an in vitro study only; no clinical significance has been established for the specific compound.
For broader context, the structurally related simpler monoglyceride GML has been more extensively studied. GML is generally recognized as safe by the FDA and exhibits potent antibacterial activity against Gram-positive cocci and Bacillus anthracis. Evidence from this GML literature cannot be extrapolated directly to decaglycerol monolaurate because the decaglycerol head group substantially alters both the HLB value and the membrane affinity of the molecule.
Evidence level: Primarily in vitro and formulation science; no human clinical trials identified.
Decaglycerol monolaurate has been investigated as a pharmaceutical excipient for emulsion-based delivery systems. Its high HLB value makes it suitable for the continuous phase of water-in-oil-in-water (W/O/W) multiple emulsions used for oral and topical drug delivery. In one study, β-sitosterol and γ-oryzanol were encapsulated in oil-in-water emulsions using straight-through microchannel emulsification; decaglycerol monolaurate (ML-750) was used in the continuous phase, with the study demonstrating the production of monodisperse droplets with high encapsulation efficiency and stability.
Multiple emulsions stabilized with decaglycerol monolaurate at the outer aqueous interface represent an area of active formulation research, but clinical evidence for therapeutic benefit in humans from any such preparation remains absent from the literature.
Evidence level: Applied formulation science; no controlled clinical trials identified for this compound specifically.
Polyglyceryl-10 Laurate helps to stabilize oil and water mixtures, allowing for the creation of stable emulsions, and enhances the spreadability and texture of products, improving their overall sensory attributes. Since formulations should use raw materials from renewable resources and PEG-containing emulsifiers are undesired in natural formulations, polyglycerol esters are preferred PEG-free alternatives for cosmetic emulsifiers based on renewable raw materials. Decaglycerol monolaurate is widely used as a gentle surfactant in personal care products, with an EWG Skin Deep safety rating citing low concern for cancer, allergy/immunotoxicity, and developmental/reproductive toxicity, referencing the Cosmetic Ingredient Review (CIR) as a data source. EWG assigns LOW concern ratings for cancer, allergies and immunotoxicity, and developmental and reproductive toxicity.
Evidence level: Animal models only; no human clinical trials identified for decaglycerol monolaurate specifically.
Research on the related compound glycerol monolaurate (GML) in rodent models provides contextually relevant but not directly applicable data. GML is widely consumed worldwide in the food industry and is considered safe, but supporting scientific data for its relationship to chronic diseases remain sparse. In one mouse study, GML induced metabolic syndrome by significantly increasing body weight, food intake, body fat, serum triglycerides, LDL, and atherogenic index; meanwhile, GML significantly changed gut microbiota β-diversity and composition, and upregulated circulating levels of LPS, IL-1β, IL-6, and TNF-α. This was an animal study at doses which may not be representative of human dietary exposure, and these specific findings cannot be applied to decaglycerol monolaurate, a structurally distinct compound with different physicochemical and metabolic properties.
For polyglycerol fatty acid esters in general, absorption of intact PEFA in the gastrointestinal tract is extremely low, and PEFA is rapidly and almost fully hydrolysed to polyglycerols and fatty acids in the gastrointestinal tract. The decaglycerol released upon hydrolysis is not catabolized. Polyglycerols are not catabolized in the human body, but are excreted unchanged.
Decaglycerol monolaurate is not used as a standalone dietary supplement at pharmacological doses in the manner of traditional botanical supplements. The dosages appearing in the scientific literature are primarily related to its use as a functional food additive, emulsification excipient, or in vitro antimicrobial test concentration.
No human clinical dosing regimens for decaglycerol monolaurate as a supplement have been identified in the peer-reviewed literature.
Polyglycerol monolaurates are generally recognized as safe food additives and are commonly used as food emulsifiers. Polyglycerol esters of fatty acids (E 475) are authorized for use as food additives in the European Union. PEFA (E 475) was re-evaluated in 2017 by the EFSA Panel, which concluded that there was no need for a numerical acceptable daily intake (ADI) and that there was no safety concern at the reported uses and use levels.
On 20 December 2017, the European Food Safety Authority (EFSA) issued a scientific opinion on the re-evaluation of polyglycerol esters of fatty acids (E 475) as a food additive, concluding that there was no need for a numerical acceptable daily intake and that the food additive was of no safety concern at the reported uses and use levels.
No adverse effects of PEFA at any dose have been observed in short-term, subchronic, or chronic toxicity studies.
Regulatory authorities in various countries have approved polyglycerol esters, including decaglycerol monolaurate, as food additives, indicating a consensus on their general safety when used within prescribed limits; several in vitro and in vivo studies have examined the metabolic fate and safety of polyglycerol esters, supporting their non-toxicity and lack of adverse effects at typical dietary levels.
The principal identified safety concern from regulatory review relates not to decaglycerol monolaurate itself, but to potential process contaminants arising from the manufacturing of the polyglycerol backbone. The EFSA Panel noted that epichlorohydrin and glycidol may be present in PEFA (E 475) from manufacturing processes of polyglycerols; epichlorohydrin is classified as carcinogen category 2A and glycidol as probably carcinogenic to humans (2A) by IARC, with EFSA's CONTAM Panel characterizing glycidol as genotoxic and carcinogenic. The Panel considered that the presence of epichlorohydrin and/or glycidol in PEFA would need further assessment as their presence could raise a safety concern.
In response to these findings, regulatory specifications were updated. The EFSA Panel concluded that the maximum limits in EU specifications for the four toxic elements (arsenic, lead, mercury, and cadmium) should be lowered based on actual levels in commercial E 475, and that maximum limits for erucic acid, 3-monochloropropanediol, and glycidyl esters should be included in the EU specifications for E 475. The Panel further recommends that polyglycerol used for manufacturing of E 475 should be produced from glycerol meeting the specifications for E 422, in which case specification limits for epichlorohydrin, acrolein, and butanetriol would not be needed for E 475.
No specific drug–nutrient interactions with decaglycerol monolaurate have been identified in the peer-reviewed literature. As a food emulsifier, it may transiently alter lipid absorption kinetics by modifying micellar structure in the small intestine, a property shared by all dietary surfactants, but no specific interaction studies with drugs or nutrients have been published for this compound.
The broader class of fatty acid monoesters (including GML) has been shown in animal models to interact with the gut microbiome. Growing evidence indicates that broad use of emulsifying agents may contribute to increased incidence of obesity, metabolic syndrome, and other chronic inflammatory diseases. Whether this applies to decaglycerol monolaurate in humans at dietary exposure levels has not been established; the available evidence for the class comes from animal studies and is not directly applicable to decaglycerol monolaurate specifically.
The scientific evidence base for decaglycerol monolaurate as a dietary supplement ingredient is substantially limited. The compound's history is rooted in food technology and emulsifier science, where it is well-characterized physically and chemically. However:
Health conditions that Decaglycerol monolaurate may help support.
Body systems that Decaglycerol monolaurate may help support.
Go back