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| Catalog Number | CI-SC-0150 |
| Product Name | PEG/PPG-18/18 Dimethicone |
| CAS | 68037-64-9 |
| Description | Liquid low odor, low color cosmetic grade ethoxylated dimethicone. Offers conditioning and emollient properties in haircare and skincare formulae. |
| Appearance | Clear to slightly hazy light-yellow to amber liquid |
| Application | Skin and hair care products, color cosmetics |
| Storage | Store light-protected at a cool and dry place |
| HS Code | 3208100000 |
| INCI | PEG/PPG-18/18 dimethicone |
| Uses | Recommended use level 1-5%. For external use only. |
PEG/PPG-18/18 Dimethicone serves as a versatile ingredient in personal care products due to its unique chemical properties. As a copolymer of polydimethylsiloxane and polyoxyalkylene ether, it is a clear to hazy liquid that effectively dissolves in cool water and lower alcohols. It is particularly valued for its ability to lower the surface tension of solutions, surpassing conventional organic surfactants, and contributes both moisturizing and de-tackifying properties. Its use in formulations such as shampoos, conditioners, hair sprays, lotions, and antiperspirants capitalizes on its ability to impart lubricity and softness, while also stabilizing foam levels, which results in a soft, silky texture. Additionally, its water solubility makes it ideal for creating clear personal care products. Though generally non-hazardous and possessing a low toxicity level, caution is advised to avoid skin or eye irritation upon contact.
Li F, et al. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2015, 470, 290-296.
Using polydimethylsiloxane (PDMS), EG/PPG-18/18 dimethicone in cyclopentasiloxane and Bis-PEG/PPG-20/5 PEG/PPG-20/5 dimethicone and methoxy PEG/PPG-25/4 dimethicone as raw materials, the W/Si/W multiple emulsions were prepared by single-step emulsification method. According to the stability and rheology analysis of multiple emulsions, when the weight ratio of oil to water phase is 1:8, a good multiple structure can be formed, stabilized by 0.005 mol/L magnesium sulfate in external aqueous phase, 0.03 g xanthan gum in internal aqueous phase.
Preparation of W/Si/W emulsions
· W/Si/W emulsions were created using a one-step emulsification process. The water phase, containing magnesium sulfate anhydrous, Xanthan gum, and water, was combined with the oil phase consisting of Polydimethylsiloxane polymer, PEG/PPG-18/18 dimethicone in cyclopentasiloxane (DC 5225c), bis-PEG/PPG-20/5PEG/PPG-20/5 dimethicone, and methoxy PEG/PPG-25/4 dimethicone (ABIL Care XL80) at a temperature of 80-85 °C while being mixed with a high shear mixer (10,000 rpm) for 3 minutes. The emulsion was then cooled down with stirring to reach the desired temperature.
· With a lower oil/aqua rate, a significant W/Si/W multiple emulsion structure was formed and stabilized by adding 0.005 mol/L magnesium sulfate to the external aqueous phase and 0.03 g xanthan gum to the internal aqueous phase.
What is PEG/PPG-18/18 Dimethicone used for in skin care?
PEG/PPG-18/18 Dimethicone is used to lubricate the surface of the skin, lock in moisture, and form a protective barrier against environmental stressors.
What effect does PEG/PPG-18/18 Dimethicone have on hair care products?
PEG/PPG-18/18 Dimethicone helps with moisturization and conditioning of the hair, but it can also cause build up and lead to hair loss.
What is the origin of PEG/PPG-18/18 Dimethicone?
PEG/PPG-18/18 Dimethicone is a synthetic ingredient made from polyethylene glycol (PEG), polypropylene glycol (PPG), and dimethicone.
What does PEG/PPG-18/18 Dimethicone do in a formulation?
PEG/PPG-18/18 Dimethicone functions as a cleansing and moisturizing agent.
Is PEG/PPG-18/18 Dimethicone safe to use in cosmetics and personal care products?
Yes, PEG/PPG-18/18 Dimethicone is considered safe for use in cosmetics and personal care products. However, it may contain 1,4-dioxane, a possible human carcinogen, during the manufacturing process. Proper filtration removes this impurity.
Does PEG/PPG-18/18 Dimethicone cause acne or breakouts?
No, PEG/PPG-18/18 Dimethicone is non-comedogenic and does not cause acne or breakouts.
What is the composition of PEG/PPG-18/18 Dimethicone?
PEG/PPG-18/18 Dimethicone is composed of dimethicone, polyethylene glycol (PEG), and polypropylene glycol (PPG).
What are the benefits of using PEG/PPG-18/18 Dimethicone in cosmetic products?
PEG/PPG-18/18 Dimethicone provides good spreadability, a smooth and silky feel, stability, hydration, and viscosity to cosmetic products. It also forms a semi-permeable film on the skin surface to reduce water loss and protect against harmful substances.
In which types of beauty products can PEG/PPG-18/18 Dimethicone be found?
PEG/PPG-18/18 Dimethicone can be found in a variety of beauty products including makeup, sunscreen, and hair care products.
How is PEG/PPG-18/18 Dimethicone used in liquid foundations?
PEG/PPG-18/18 Dimethicone is used in liquid foundations as an emulsifier, where water is dispersed in silicone to create a stable and spreadable product.
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