BRB 1740 Dimethicone (and) Dimethiconol – Linear Silicone Blend for Skin & Hair Care
BRB 1740 Dimethicone (and) Dimethiconol – Linear Silicone Blend for Skin & Hair Care
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Linear silicone blend for a silky soft feel in skin and hair care
BRB 1740 is a clear solution of dimethiconol gum in a low-viscosity dimethicone (INCI: Dimethicone (and) Dimethiconol). The product is 100% silicone, contains 12% dimethiconol and has a viscosity of approx. 1500 mm²/s. In cosmetic formulations BRB 1740 gives the skin a soft, silky feel and gives hair shine and a strong conditioning effect. Because the carrier is a linear dimethicone rather than cyclopentasiloxane (D5), BRB 1740 is the future-proof alternative to BRB 1840.
Key benefits
- Silky soft skin feel: leaves the skin feeling smooth, silky and cared for.
- Better spreadability: formulations are easier to apply and spread well, in any type of formula.
- Breathable protective layer: forms a non-occlusive, non-comedogenic film on skin and hair.
- Substantivity: helps other actives adhere better to the skin surface.
- Film-forming and water-resistant: the effect lasts, even on contact with water.
- Shine and conditioning: gives hair shine, repairs it and protects it from external damage.
BRB 1740 or BRB 1840?
- → Both products contain dimethiconol gum and have a comparable viscosity of approx. 1500 mm²/s.
- → BRB 1840 uses cyclopentasiloxane (D5) as the carrier. It evaporates after application, giving a drier skin feel, but D5 falls under the European REACH restriction for cosmetics.
- → BRB 1740 uses a non-volatile, linear dimethicone as the carrier. This makes the formulation less dependent on the D5 restriction, and the film stays on skin and hair for longer.
⚠️ Cyclic siloxanes as impurities
BRB 1740 does not contain D5 as a carrier, but it does contain traces of cyclic siloxanes from the production process. According to the current safety data sheet (version 7, 1 August 2023) these are cyclotetrasiloxane (D4) 0.025 to 0.1% and cyclopentasiloxane (D5) and cyclohexasiloxane (D6) each below 0.1%. D4, D5 and D6 fall under REACH Annex XVII, entry 70, with a maximum of 0.1% per substance in cosmetics. The raw material questionnaire dates from 2019; for the current composition the safety data sheet is authoritative.
Check which rules apply to your application and target market before use. Responsibility for the finished product lies with the formulator.
Typical applications
- ✓ Body and skin care: creams, lotions and serums
- ✓ Antiperspirants and deodorants
- ✓ Sun protection
- ✓ Make-up and colour cosmetics
- ✓ Hair care: conditioners, styling products, hair serums and hair masks
Processing
- Add BRB 1740 to the oil phase of your formulation.
- Emulsify into an oil-in-water emulsion at high speed.
BRB 1740 is soluble in isododecane, isopropyl myristate, isopropyl palmitate, cyclopentasiloxane, dimethicone and phenyl trimethicone.
Points of attention
- ✓ According to the safety data sheet, BRB 1740 is classified as hazardous to the aquatic environment, chronic category 3 (H412: Harmful to aquatic life with long lasting effects). Avoid release to the environment and to drains.
- ✓ Not classified as dangerous goods for transport (ADR, RID, IMDG, IATA). Water hazard class: WGK 1.
- ✓ Not intended for oral care products; the manufacturer specifies a maximum concentration of 0% for these.
- ✓ Avoid use in sprays and aerosols without additional assessment; the manufacturer specifies restrictions for this.
- ✓ Wear nitrile gloves and safety glasses with side shields, and ensure good ventilation.
- ✓ Store the container tightly closed in a dry, well-ventilated place. Shelf life 3 years in the unopened original packaging.
- ✓ This product is supplied on quotation.
Professional support
The technical data sheet, the safety data sheet and the cosmetic raw material questionnaire (composition, impurities, chemical inventories, allergens) can be found in the documents on this page. Would you like a quotation, advice on dosage or help switching from BRB 1840 to BRB 1740? Email us at info@siliconesandmore.com and we will gladly help.
Product Properties
- ColorColourlessColor of the finished product
- TransparencyTransparentDegree of transparency
- Viscosity1500mPa·sViscosity of the uncured silicone
- Density0.93g/cm³Density of the cured material
Application
- Use caseCosmetic raw material for skin care, hair care, deodorant, sun protection and make-upIntended use
- Silicone type["Auxiliary material"]Type of silicone or polymer
- Shelf life36monthsIn unopened original packaging
- Active substance12.0%Proportion of active substance
- SolventDimethicone (low viscosity, linear)Solvent used
- Application method["Add to the oil phase","Emulsify at high speed"]How the product is applied
Chemistry & Regulation
- INCI nameDimethicone (and) DimethiconolName for cosmetic ingredient lists
- CAS number(s)63148-62-9, 70131-67-8Main components
- Silicone content100.0%Percentage by weight
- Soluble inIsododecane, Isopropyl myristate, Isopropyl palmitate, Cyclopentasiloxane, Dimethicone, Phenyl trimethiconeCompatible solvents and oils
- Hazardous (CLP)YesAccording to the safety data sheet
- Water hazard classWGK 1German classification (WGK)
- REACH restrictionAnnex XVII, entry 70 (D4, D5, D6): max. 0.1% per substance in cosmetics. According to SDS version 7, BRB 1740 contains D4 0.025 to 0.1% and D5 and D6 each below 0.1%.Annex XVII
Safety Information
According to the safety data sheet (version 7, 1 August 2023), BRB 1740 is classified as hazardous to the aquatic environment, chronic category 3: H412 Harmful to aquatic life with long lasting effects. This classification is due to traces of cyclotetrasiloxane (D4). Avoid release to the environment and dispose of residues and packaging via an approved waste disposal company. Wear nitrile gloves (at least 0.4 mm, breakthrough time at least 480 minutes) and safety glasses with side shields, ensure good ventilation and wash your hands after work. Always consult the supplied safety data sheet (SDS) for full information on hazards, handling, storage and first aid.| Safety Pictograms | Safety Data Sheets (SDS) |
|---|---|
Required protection (ISO 7010)
  |
| Signal Word | H‑code | Hazard Statement | P‑codes | P‑statements |
|---|---|---|---|---|
| Warning | H412 | Harmful to aquatic life with long lasting effects | P273 P501 |
|
Technical data sheets
Frequently asked questions
What is the delivery time for my order?
Orders placed and paid on working days are in most cases shipped the same day. Weekend orders are processed on the next working day.
Indicative delivery times: Netherlands usually within 1 working day, Belgium and Germany typically 1–2 working days, other countries depending on destination and carrier. These are guidelines, not guarantees: peak periods, public holidays or carrier delays can have an effect.
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You have 30 days to return after receipt. Email info@siliconesandmore.com within 30 days of delivery with your name and order number. The full conditions are in our return policy.
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