Cyclopentasiloxane
CYCLOPENTASILOXANE
decamethylcyclopentasiloxane, cyclopentasiloxane, D5
Cyclopentasiloxane is an organic silicone that is frequently used in skin care cosmetics.
Cyclopentasiloxane is a volatile polydimethylcyclosiloxane composed mainly of cyclopentasiloxane.
Cyclopentasiloxane is clear, tasteless, essentially odorless, non-greasy, and non-stinging.
Cyclomethicone is a general term describing an individual and/or a mixture of cyclic siloxane materials that have many uses and are found in a variety of consumer products. These materials are derived from the natural elements silicon and oxygen.
The basic structure common to all cyclomethicones is a cyclic backbone of siloxane units (i.e., silicon and oxygen with molecules of carbon and hydrogen attached, all very common elements found in nature).
Shorthand nomenclature is based upon the number of siloxane groups in the cyclic structure.
Thus, cyclomethicone D5 (also known as cyclopentasiloxane or just D5) has five of these groups.
Cyclopentasiloxane ensures optimum viscosity in skin care products and leaves the skin feeling smooth and silky.
Cyclopentasiloxane is a volatile, low-viscosity Cyclo pentasiloxane fluid used in skincare, suncare, color cosmetics, hair care, and antiperspirant/deodorant applications.
Cyclopentasiloxane is a staple ingredient used in cosmetics.
The chemical formula for Cyclopentasiloxane is C10H30O5Si5.
Cyclopentasiloxane is a non-greasy silicone that is colorless, odorless, and water-thin.
Cyclopentasiloxane gets quickly evaporated from the skin rather than getting absorbed - making it a brilliant ingredient to be used in products that need to dry fast, like antiperspirants and hair sprays.
Further, Cyclopentasiloxane also has lubricating properties and feels silky smooth when applied to hair and skin.
Uses of Cyclopentasiloxane: Antiperspirants, Deodorants, Hair sprays, Cleansing creams, Skin creams, Lotions and stick products, Bath oils, Suntan, and shaving products, Make-up, Nail polishes
Substance identity
EC / List no.: 208-764-9
CAS no.: 541-02-6
Mol. formula: C10H30O5Si5
INCI Name: Cyclopentasiloxane
Synonyms of Cyclopentasiloxane: decamethylcyclopentasiloxane, D5, D5 Silicone, XIAMETER PMX-0245, 2,2,4,4,6,6,8,8,10,10-Decamethyl cyclo pentasiloxane,
Unlike other volatile carriers in the personal care industry, Cyclopentasiloxane volatile silicone fluid does not cool the skin when evaporating.
Cyclopentasiloxane (D5) is the predominant Cyclomethicone used in cosmetics and personal care products, primarily due to its excellent skin and hair conditioning properties.
It is also used as a solvent.
D5 and similar Cyclomethicone ingredients are used in products where eventual evaporation of the siloxane carrier fluid is desired, such as deodorants and antiperspirants that need to coat the skin but do not remain tacky afterward.
Other significant product performance benefits include facilitating a smooth texture and an even application.
Thus, they may also be found in sunscreens, shampoos, conditioners, moisturizers, lotions, etc.
Benefits of Cyclopentasiloxane in Personal Care Products:
Volatile carrier
Compatible with a wide range of cosmetic ingredients
Low surface tension
Cyclopentasiloxane imparts a soft silky feel to the skin
Excellent spreading
Leaves no oily residue or build-up
Detackification
Non-greasy
Cyclopentasiloxane does not contain ingredients of animal origin (Suitable for Vegans)
No animal cross contamination
No porcine contamination
Preferred IUPAC names:
Decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane
Other names
Cyclopentamethicone
Cyclic dimethylsiloxane pentamer
D5
D5
2,2,4,4,6,6,8,8,10,10-Decamethylcyclopentasiloxane
Cyclopentasiloxane is used in the following products: cosmetics and personal care products, washing & cleaning products, polishes and waxes, pharmaceuticals, textile treatment products and dyes, perfumes, fragrances, Antiperspirants, deodorants, hair sprays, cleansing creams, skin creams, lotions, stick products, bath oils, suntan and shaving products, make-up, and nail polishes.
Cyclopentasiloxane is a base fluid in several personal care products, with excellent spreading, easy rub-out, lubrication properties, and unique volatility characteristics.
In the sticks, Cyclopentasiloxane has the right balance between volatility and spreading.
Cyclopentasiloxane may be used alone or blended with other cosmetic fluids to provide a fluid base for various cosmetic ingredients.
Cyclopentasiloxane features good solubility in most anhydrous alcohols and many cosmetic solvents.
Cyclopentasiloxane is a volatile fluid with an appreciable vapor pressure at ambient temperature.
Cyclopentasiloxane may also have indoor use like machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances, and air fresheners), outdoor use, indoor use in closed systems like cooling liquids in refrigerators, oil-based electric heaters) and outdoor use in closed systems like hydraulic liquids in automotive suspension and lubricants in motor oil and brake fluids).
Cyclopentasiloxane D5 is found or used to manufacture a wide variety of products.
The predominant use of D5 Cyclopentasiloxane worldwide is blending and formulating consumer products.
Cyclopentasiloxane D5 is also used in manufacturing silicone polymers.
D5 Cyclopentasiloxane is used in personal-care products such as hair/skin care, antiperspirants, and deodorants.
Silicone polymers that may contain residual amounts of D5 (from the manufacturing process) are used in biomedical applications and have also been approved as active and non-active ingredients in pharmaceuticals.
Silicone polymers are also used in industrial processes (for example, as surfactants in certain pesticide products and defoamers), lubricants, cleaning products, sealand foamers), polishes, and coatings.
Many commercial dry cleaners use Cyclopentasiloxane D5 as a dry-cleaning fluid.
D5 is commonly used as a volatile excipient in cosmetic products.
It is primarily used in many cosmetic products due to: its low surface tension, which allows it to spread rapidly on skin and hair, its hydrophobicity, its volatility (D5 evaporates from skin or hair within 4-12 hours after application) and its stability (low reactivity in acidic or aqueous products).
Due to these properties, D5 can have many functions in cosmetic products, including antistatic, emollient, humectant, solvent, viscosity controlling, and hair conditioning.
Decamethylcyclopentasiloxane
decamethylcyclopentasiloxane
Decamethylcyclopentasiloxane
D5
Decamethylcyclopentasiloxane; D5
IUPAC names
1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane
2,2,4,4,6,6,8,8,10,10-decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane
2,2,4,4,6,6,8,8,10,10-Decamethyl-1,3,5,7,9,2,4,6,8,10-pentoxapentasilecane
2,2,4,4,6,6,8,8,10,10-decamethyl-1,3,5,7,9,2,4,6,8,10-pentoxapentasilecane
2,2,4,4,6,6,8,8,10,10-Decamethylcyclopentasiloxane
2,2,4,4,6,6,8,8,10,10-decamethylcyclopentasiloxane
CYCLOPENTASILOXANE
D5
Decamethyl cyclopentasiloxano
decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane
Decamethylcyclopentasiloxan
DECAMETHYLCYCLOPENTASILOXANE
Decamethylcyclopentasiloxane
decamethylcyclopentasiloxane
Decamethylcyclopentasiloxane
decamethylcyclopentasiloxane, D5
Dimethylpolysiloxan
Trade names
Baysilone D5G
BRB CM 50
Calsil CV 50
Calsil CV50
Calsil IV 50
Calsil IV50
D5
DECAMETHYLCYCLOPENTASILOXANE
decametilciclopentasiloxano
DOW CORNING 245 FLUID
EXO T216S
KF995
PENTAMERE D5
SB32
SF 1202
SHTSF405
SILBIONE PENTAMERE D5
Silsoft 1202-LT
SL25
T-216B
TSF405
XE14-B9042C
XIAMETER PMX-0245
Cyclopentasiloxane
Not many may be familiar with Cyclopentasiloxane (D5), but the cosmetic industry commonly uses it.
Silicon is the common name of this compound.
It is a form of silicon that is a non-greasy, odorless, and colorless agent with numerous benefits.
Its lubricant properties make it used in many industries, including beauty. Using it leaves the skin and hair silky.
Furthermore, this compound doesn’t get absorbed into the skin. Instead, it evaporates.
This characteristic makes it useful for skin and hair care products that are needed to dry quickly.
Scientific name: Decamethylcyclopentasiloxane
Chemical formula: C10H30O5Si5
Cyclopentasiloxane uses & benefits.
Cyclopentasiloxane is a versatile compound commonly used in medical transplants, lubricants, and sealants, but its contribution to the beauty industry is commendable. Cyclopentasiloxane in skin care products is found in a vast lineup. It has unique properties that amazingly benefit our skin and hair.
Cyclopentasiloxane uses for skin.
Cyclopentasiloxane is known for its silky and smooth texture.
When used in beauty products, it gives your skin a smooth feel with a non-greasy finish.
Cyclopentasiloxane in skin care products provides a light feel to your skin.
Its molecular weight is low, which makes the skin feel weightless.
One of the chemical's key benefits is its anti-dehydrating properties, which help to lock moisture in your skin.
Your favorite cosmetics, such as foundation, concealers, lipsticks, mascaras, and eyeliners, also contain Cyclopentasiloxane to make their application easy and natural.
Cyclopentasiloxane acne reduction creams help to reduce acne and scars. The compound is also functional in protecting the skin from the recurrence of acne breakouts.
Cyclopentasiloxane also adds a protective barrier to our dermis layers. It acts like a guard on the skin to stop allergen-like bacteria from entering.
Cyclopentasiloxane works on scarred areas and lightens the dark spots making our skin evenly toned.
Cyclopentasiloxane uses for hair.
Cyclopentasiloxane for hair care products is a requisite ingredient.
Cyclopentasiloxane creates a protective layer on your hair as a hair serum that helps keep hair safe from toxins and pollutants.
Cyclopentasiloxane is a non-absorbing compound that evaporates quickly while using deodorants or hair sprays, making it an essential ingredient for cosmetics products.
Cyclopentasiloxane in hair products like conditioners and hair masks reduces frizz and provides a supple and gentle touch to your hair.
Using Cyclopentasiloxane hair shampoos may help to prevent your hair from damage and dullness.
Using Cyclopentasiloxane daily will provide great satisfactory results.
Hairstyling gels and lotions with this chemical are helpful to give a hold on your hair.
Cyclopentasiloxane hair products are also helpful in curing your rough and dry hair as the compound is rich in hydrating properties.
Cyclomethicones create many positive qualities we associate with personal care products: luxuriant texture, silky smoothness, luster, and smooth application.
They help make personal care products non-stinging and non-irritating.
For example, silicones reduce the white residue and tacky feel of antiperspirants and help “long-lasting” makeup retain its color and luster.
With cyclomethicones, shampoos and conditioners have better shine; wetting and spreading qualities provide smooth and even application of makeup, lotions, sunscreens, and cleanser.
How to apply/use Cyclopentasiloxane
Cyclopentasiloxane base products are suitable for all skin and hair types.
Here are a few ways to use this compound.
If you use the component as a moisturizer, apply it after your cleanser or toner to seal the product, which also helps improve absorption.
Take 2-3 drops of Cyclopentasiloxane face serum and apply it gently before doing makeup to get profitable results.
Using Cyclopentasiloxane in hair products like shampoos and conditioners delivers satisfactory results.
Using chemical-based antiperspirants containing Cyclopentasiloxane after a bath is an excellent option to keep you fresh for a long time.
The skincare and makeup products containing Cyclopentasiloxane easily apply to your skin, such as foundations and creams. Take some drops of foundation and spread evenly.
Siloxanes are preferred over other volatile alternatives because they do not dry the skin.
It forms a thin film over the skin or hair.
This film is non-greasy, but at the same time, water repellent does not let moisture evaporate and provides the emollient effect.
It spreads evenly and faster even when rubbed over the skin or hair surface.
It also helps improves hair appearance, shine, and manageability.
Because of the film, the environmental effect on skin /hair can be avoided; in other words, it also produces a protective film over skin and hair.
It is used in skin products, sunscreens, color cosmetics, hair care, lotions, facial make-up, and rinse-off products.
Although it creates a film over the hair, this film is not always desirable like many silicons, as it can make the hair feel greasy and may even take a cleansing shampoo that strips the hair of oils to get rid of the film feel to hair (this is usually the case for curlier hair types).
This is, however, determined by how much of the silicon is added to the product.
If the formula is close to the top of the ingredients, this will indicate a high percentage and most likely give that film feel.
The purpose of silicons in hair conditions or shampoos is for manageability and ease of combing.
In 2018, the EU restricted the use of Cyclopentasiloxane to 0.1% in wash-off products as used above.
This was reported to accumulate in the water supply.
Before this, there was already controversy over the environmental and potential health risks Cyclopentasiloxane could cause.
EWG has classified this ingredient as safe to use in its intended concentration. It has also not been recognized as an endocrine disruptor.
It is used in skin products, sunscreens, color cosmetics, hair care, lotions, facial make-up, and rinse-off products.
The purpose of silicons in hair conditions or shampoos is for manageability and ease of combing.
Compatibility of Cyclopentasiloxane with other products of ATAMAN CHEMICALS.
Ethanol (200 proof) C
Octyl methoxy cinnamate C
Waxes
Stearyl alcohol C
Beeswax C
Paraffin wax C
Myristyl myristate C
Stearic acid C
Hydrocarbons
Mineral oil C
Petrolatum C
Isododecane C
Isopar H C
Polydecene C
Oils
Almond oil C
Jojoba oil C
Soybean oil C
Sunflower oil C
Esters
Isopropyl myristate C
Isopropyl palmitate C
Octyl palmitate C
C12-C15 Alcohol benzoate C
Capric/caprylic triglycerides C
Octyldodecanol C
Oleyl alcohol C
Silicones
Dimethicone, 350 mm2s1 C C
Phenyl trimethicone C C
Stearyl dimethicone C C
Cetyl dimethicone C C
OTHER PRODUCTS OF ATAMAN CHEMICALS THAT MIGHT BE OF INTEREST:
Hexamethylcyclotrisiloxane (D3)
Octamethylcyclotetrasiloxane (D4)
Decamethylcyclopentasiloxane (D5)
Octamethylcyclotetrasiloxane (D4)
dodecamethylcyclohexasiloxane (D6)
