OILREE® MY92-B and OILREE® MY972-B, with their complementary molecular structure, adapted HLB value and synergistic emulsifying properties, have become classic emulsifying combinations. They are widely used in various O/W skin care formulas. With stable performance, gentle properties and excellent skin feeling, they have become the preferred emulsified raw materials for creams, lotions, sunscreens and other products.
I. Analysis of the characteristics and advantages of MY92-B and MY972-B
(1) MY92-B
The INCI name of MY92-B is stearez-2, CAS No. 16057-43-5, is a non-ionic oleophilic
Emulsifier with excellent performance, the appearance is white waxy, and the packaging specification is 10kg/box.
From the point of view of physical and chemical properties, the hydroxyl value of MY92-B is 150-165mgKOH/g, the melting point is 44-48℃, the water content is ≤2%, the waxy texture makes it easy to melt when heated, and the feeding is convenient. It can be quickly integrated into the oil phase system to complete the dispersion and dissolution.As a low HLB value emulsifier, its HLB value is about 4-5, it has outstanding oleophilicity, can efficiently wrap various oil components, and has excellent compatibility with emollient oils such as
Isopropyl myristate. It is the core additive for building a stable oil phase.
In terms of functional applications, MY92-B has limited emulsifying stability when used alone and cannot independently support a complete emulsifying system. However, as an oleophilic emulsifying aid, it can significantly improve the consistency, gloss and moisturizing of the cream, and is suitable for the formulation needs of creams, body creams, hand creams, essence creams and other products.The properties of its nonionic surfactants make it mild in nature, non-irritating to the skin, and widely compatible. It can be compatible with a variety of raw materials such as cationic conditioners, moisturizers, and thickeners. Even with quaternary ammonium salt ingredients such as
Cetrimonium chloride, there will be no contraindications to compatibility, ensuring the compatibility and safety of the formula system.
(2) MY972-B
The INCI name of MY972-B is stearez-21, CAS number 9005-00-9, which forms a perfect complement to MY92-B. The appearance is white granular, and it is also packed in 10kg/box, which is convenient for weighing and dispersing operations in the production process.
This product belongs to an emulsifier with a high HLB value, with an HLB value of about 15-16, strong hydrophilicity, can quickly blend with water, and is suitable for the emulsification needs of the
Oil in water emulsifier system. It is the main emulsifying ingredient of emulsions, creams, sunscreens, skin care creams and other products.In terms of physical and chemical indicators, the acid value of MY972-B is ≤5mgKOH/g, and the pH value of 1% aqueous solution is 6.5-8. It has mild properties and a wide range of acid and alkali resistance. It can be adapted to high electrolyte, high ethanol or polyol systems, breaking through the application limitations of traditional emulsifiers.
Functionally, MY972-B has strong emulsifying power and saves dosage. After compounding with MY92-B, it can form an efficient emulsifying film, which can not only improve the stability of the system, avoid layering and effluent problems, but also make the formula light and non-sticky, creating a light cream skin feeling.Its granular form is easy to disperse and has no agglomeration. There is no need for complex pretreatment in production. The aqueous or oil phase can be directly added to heat and dissolve to simplify the emulsification process. At the same time, the finished product of the emulsified body is bright and delicate, with excellent appearance and texture, which meets the quality requirements of high-end skin care products.
II.Complex core logic
The reason why MY92-B and MY972-B have become a classic emulsion combination stems from the scientific application of the HLB addition principle.
The essence of the stability of the emulsifying system is to allow the emulsifier to accurately match the HLB value required for the oil phase, so as to achieve uniform fusion and long-term stability of the water and oil phases.When using MY92-B alone, its low HLB value can only act on the oil phase, and it cannot be effectively connected to the aqueous phase, and the emulsion is prone to oil-water stratification.When using MY972-B alone, the high HLB value makes it difficult to emulsify the aqueous phase, and the ability to wrap the oil phase is insufficient, making it difficult to stabilize the formula with high oil content.After the two are combined, the oleophilic MY92-B is responsible for grasping the oil and oil phase components, and the hydrophilic MY972-B is responsible for holding the water and stabilizing the aqueous phase system. Through proportional adjustment, the HLB requirements of different oils and fats can be accurately matched to form a stable nonionic O/W emulsifying system.
From the molecular structure point of view, both products are stearyl alcohol polyether series. The molecular skeleton is similar, the compatibility is excellent, and there is no rejection after compounding. It can form a continuous and uniform emulsifying interface, effectively reduce the oil-water interfacial tension, and avoid emulsion demulsification, stratification, effluent and other problems.At the same time, the nonionic properties make the combined system gentle and non-irritating, avoiding the contraindications of the combination of anionic and cationic surfactants.
III.Advantages of compound application
(1) The emulsification stability is full
After the combination of MY92-B and MY972-B, the stability of the emulsifying system is significantly improved, and it has excellent electrolyte resistance, acid-base stability, and hot and cold tolerance.Whether it is an effective formula with a high concentration of electrolytes, a refreshing formula containing ethanol and polyols, or a complex system with fluctuating pH value, this combination can maintain the integrity of the emulsified structure, no stratification, no deterioration, and no oil-water separation.At the same time, the complex ligand system is highly tolerant of grease and thickening ingredients, and can be adapted to formulas with high grease and active substance content to extend product shelf life and ensure stable product quality.
(2) Precise regulation of skin sensation
The combination can be adjusted in proportion to flexibly regulate the skin feeling of the product to meet different skin needs.Increasing the ratio of MY92-B can enhance the moisturizing, consistency and luster of the cream. It is a highly moisturizing cream and body lotion suitable for dry skin.Increasing the ratio of MY972-B can make the formula lighter, refreshing, and non-sticky. It is suitable for lotions, essences and sunscreen products for oily and mixed skin.Compared with a single emulsifier, the complex ligand system avoids the disadvantages of greasy, heavy or insufficient freshness. It has good malleability and fast absorption speed when applied. At the same time, it gives the product a delicate luster and enhances the use experience. It is suitable for
Makeup moisturizer and other products that have both moisturizing and pre-makeup primer functions. Demand.
(3) Strong process adaptability
The morphological characteristics of the two raw materials make the compounding process simple and easy to control. MY92-B waxy is easy to melt, and MY972-B granular is easy to disperse, and it can be quickly dissolved in the corresponding phase state without special pretreatment.In production, the ratio of the two is highly tolerant, and small fluctuations in the ratio do not affect the emulsification effect.At the same time, the complex ligand system has high emulsification efficiency, and the total dosage is only 1.0-5.0% to achieve stable emulsification.
IV.Multiple application scenarios
With stable performance and flexible adaptability, the combination of MY92-B and MY972-B is widely used in various cosmetic formulas, and has become the core emulsified raw material for Emulsifier makeup, skin care lotion, efficacy cream and other products. The specific application scenarios are as follows：
(1) Basic skin care creams and lotions
This is the core application scenario of the combination, covering moisturizing creams, moisturizing body creams, gentle hand creams, refreshing essence creams and other products.A high-oil cream for dry skin, the compound combination can stabilize a variety of oils such as mineral oils, vegetable oils, and synthetic esters to enhance moisture and luster.A refreshing lotion for oily skin, the proportion can be controlled to achieve a light skin feeling, does not clog pores, and guarantees the stability of the system. It is a classic emulsifying choice for daily skin care products.
(2) Sunscreen products
Sunscreen formulas usually contain physical sunscreens (such as titanium dioxide and zinc oxide) and chemical sunscreens. The composition is complex and the emulsification stability requirements are extremely high.The combination of MY92-B and MY972-B can effectively disperse the physical masking agent, avoid the agglomeration and precipitation of the sunscreen, while stabilizing the sunscreen fat and water phase system, so that the sunscreen has a uniform texture and smooth application, both waterproof and skin comfort, suitable for all kinds of facial and body sunscreen products.
(3) Antiperspirant lotion and deodorant
Antiperspirant products mostly contain electrolytes such as aluminum salts. Traditional emulsifiers are susceptible to electrolytes and demulsification. The compound combination has excellent electrolyte resistance and can stabilize the ball-shaped, cream-based antiperspirant/deodorant system to ensure that the product is stored for a long time without stratification and deterioration, while giving the product a smooth skin feeling, non-sticky and non-irritating to the skin.
(4) Hair dye cream and special care products
The formula of hair dye cream contains oxidants, dyes and other ingredients. The chemical environment is complex, the pH value fluctuates greatly, and the tolerance of the emulsifying system is demanding.This combination can be used as a matrix to support the complex chemical environment, maintain the stability of the emulsifying system, and do not react with the hair dyeing ingredients. At the same time, it improves the ductility and adhesion of the cream, so that the hair dyeing cream evenly covers the hair and enhances the effect of hair dyeing.
V.Scientific compound recommendation
(1) Gold compound ratio
Based on the principle of complementary HLB values, the dosage of MY972-B is usually slightly higher than that of MY92-B, and the common ratio is 3:2 or 2:1. It needs to be adjusted according to the type, content and required HLB value of the fat in the formula.The high-fat and high-moisturizing formula can appropriately increase the ratio of MY92-B.The refreshing, low-oil formula can increase the amount of MY972-B, and the optimal ratio is determined through gradient experiments to achieve a balance between stability and skin feeling.
(2) Reasonable dosage control
When the two raw materials are used alone, the recommended dosage is 1.0-5.0%, and the total dosage is controlled at 1.5-4.0% when compounding to achieve stable emulsification.The amount added to resident cosmetics is 0.5-8%, and leaching cosmetics is 0.5-8.95%. There is no need to add too much to avoid problems such as sticky skin and increased cost. The specific dosage is fine-tuned according to the product type and stability requirements.
VI. Summary
As a classic non-ionic emulsifying combination, OILREE ® MY92-B and MY972-B have become the preferred raw materials for formulators to create high-quality O/W emulsifying systems with the complementary characteristics of oleophilic+hydrophilic, the scientific ratio of high and low HLB, and the dual advantages of stability + skin feeling.
MY92-B builds the foundation of the oil phase with a waxy texture and strong oleophilicity. MY972-B uses granular form and high hydrophilicity to enable the aqueous phase to be emulsified. After the two are combined, they follow the principle of HLB addition to form a strong emulsified film, which has both stability, gentleness, adaptability and process convenience. It is widely used in skin care creams, lotions, sunscreens, antiperspirant lotions, hair dyes and other diversified products, matching the core needs of
Emulsifier for cosmetics.From raw material characteristics to compound logic, from application scenarios to process control, the golden combination of MY92-B and MY972-B has mature technology, stable performance, and excellent skin feeling.
Hubei Mingya New Material Technology Co., Ltd.
