{"id":29346,"date":"2025-02-13T10:41:30","date_gmt":"2025-02-13T10:41:30","guid":{"rendered":"https:\/\/sabunyapimi.com\/en\/urun\/cyclopentasiloxane-250-gr-sabun-ve-kozmetik-urunleri-icin-hafif-ve-puruzsuz-doku-saglayan-bilesen\/"},"modified":"2026-10-09T13:03:46","modified_gmt":"2026-10-09T13:03:46","slug":"cyclopentasiloxane-d5","status":"publish","type":"product","link":"https:\/\/sabunyapimi.com\/en\/product\/cyclopentasiloxane-d5\/","title":{"rendered":"Cyclopentasiloxane (D5) 250 g \u2013 Volatile Silicone for Cosmetic Formulations"},"content":{"rendered":"<h1>Cyclopentasiloxane (D5) 250 g<\/h1>\n<h2>Lightweight Volatile Silicone for Smooth, Silky Cosmetic Formulations<\/h2>\n<p><strong>Cyclopentasiloxane<\/strong>, also known as <strong>D5 or Decamethylcyclopentasiloxane<\/strong>, is a volatile cyclic silicone traditionally used in cosmetic and personal-care formulations to provide excellent spreadability, slip and a lightweight silky sensory profile.<\/p>\n<p>Unlike heavier non-volatile silicone fluids, Cyclopentasiloxane spreads easily across the skin or hair and gradually evaporates after application.<\/p>\n<p>This can help produce a:<\/p>\n<ul>\n<li>Lightweight feel<\/li>\n<li>Silky texture<\/li>\n<li>Dry-touch finish<\/li>\n<li>Smooth application<\/li>\n<li>Reduced greasy sensation<\/li>\n<li>Improved product spreadability<\/li>\n<\/ul>\n<h2>What Is Cyclopentasiloxane?<\/h2>\n<p>Cyclopentasiloxane is a cyclic silicone composed of repeating silicon-oxygen units.<\/p>\n<p><strong>INCI Name:<\/strong> Cyclopentasiloxane<br \/>\n<strong>Chemical Name:<\/strong> Decamethylcyclopentasiloxane<br \/>\n<strong>Abbreviation:<\/strong> D5<br \/>\n<strong>CAS Number:<\/strong> 541-02-6<br \/>\n<strong>EC Number:<\/strong> 208-764-9<br \/>\n<strong>Form:<\/strong> Clear, Colorless Liquid<br \/>\n<strong>Primary Characteristic:<\/strong> Volatile Silicone<\/p>\n<p>It has a low surface tension, which allows cosmetic formulations to spread rapidly and evenly over skin and hair.<\/p>\n<h2>Main Cosmetic Functions<\/h2>\n<p>Depending on the formulation, Cyclopentasiloxane has historically been used as a:<\/p>\n<ul>\n<li>Emollient<\/li>\n<li>Solvent<\/li>\n<li>Spreading agent<\/li>\n<li>Hair-conditioning ingredient<\/li>\n<li>Antistatic ingredient<\/li>\n<li>Viscosity-modifying ingredient<\/li>\n<li>Volatile carrier<\/li>\n<li>Sensory modifier<\/li>\n<\/ul>\n<p>Its most recognizable benefit is its ability to create a silky, non-heavy application feel.<\/p>\n<h2>Volatile Silicone Technology<\/h2>\n<p>Cyclopentasiloxane does not behave like a conventional vegetable oil.<\/p>\n<p>After application, a substantial portion of the ingredient gradually evaporates.<\/p>\n<p>This makes it useful for formulations designed to feel:<\/p>\n<ul>\n<li>Less oily<\/li>\n<li>Less heavy<\/li>\n<li>More elegant<\/li>\n<li>Faster drying<\/li>\n<li>Smoother during application<\/li>\n<\/ul>\n<p>For technical accuracy, Cyclopentasiloxane should generally be described as <strong>evaporating<\/strong>, rather than being rapidly absorbed by the skin.<\/p>\n<h2>Use in Hair-Care Formulations<\/h2>\n<p>Cyclopentasiloxane has traditionally been widely used in:<\/p>\n<ul>\n<li>Hair serums<\/li>\n<li>Anti-frizz products<\/li>\n<li>Hair oils<\/li>\n<li>Leave-in products<\/li>\n<li>Hair styling products<\/li>\n<li>Heat-protection formulations<\/li>\n<\/ul>\n<p>It can act as a lightweight carrier for other silicone ingredients and conditioning materials.<\/p>\n<p>Possible sensory benefits include:<\/p>\n<ul>\n<li>Easier spreading<\/li>\n<li>Increased slip<\/li>\n<li>Smoother hair feel<\/li>\n<li>Improved shine<\/li>\n<li>Reduced heavy or greasy sensation<\/li>\n<\/ul>\n<p>It should not be described as permanently repairing damaged hair.<\/p>\n<h2>Use in Hair Serums<\/h2>\n<p>One traditional application is silicone-based hair serum.<\/p>\n<p>Cyclopentasiloxane can be combined with compatible ingredients such as:<\/p>\n<ul>\n<li>Dimethicone<\/li>\n<li>Dimethiconol<\/li>\n<li>Phenyl Trimethicone<\/li>\n<li>Selected cosmetic esters<\/li>\n<li>Oil-soluble fragrance<\/li>\n<\/ul>\n<p>to produce a lightweight serum system.<\/p>\n<p>As the D5 evaporates, the less volatile conditioning materials remain on the hair.<\/p>\n<h2>Use in Skincare<\/h2>\n<p>Cyclopentasiloxane has also historically been incorporated into:<\/p>\n<ul>\n<li>Face creams<\/li>\n<li>Facial serums<\/li>\n<li>Primers<\/li>\n<li>Body lotions<\/li>\n<li>Lightweight moisturizers<\/li>\n<li>Hand-care products<\/li>\n<\/ul>\n<p>It can improve product spreadability and reduce the heavy feel of richer oil phases.<\/p>\n<p>However, current and future regulatory restrictions must be considered before developing new products.<\/p>\n<h2>Use in Makeup<\/h2>\n<p>Cyclopentasiloxane has been particularly popular in color cosmetics such as:<\/p>\n<ul>\n<li>Makeup primers<\/li>\n<li>Foundations<\/li>\n<li>BB creams<\/li>\n<li>Concealers<\/li>\n<li>Long-wear formulations<\/li>\n<\/ul>\n<p>because it helps formulas spread quickly and evenly.<\/p>\n<p>It may contribute to:<\/p>\n<ul>\n<li>Silky application<\/li>\n<li>Lightweight feel<\/li>\n<li>Improved pigment distribution<\/li>\n<li>Dry-touch sensory profile<\/li>\n<\/ul>\n<h2>Is Cyclopentasiloxane a Moisturizer?<\/h2>\n<p>Cyclopentasiloxane should not primarily be described as a moisturizer.<\/p>\n<p>Its main cosmetic benefits are related to:<\/p>\n<ul>\n<li>Sensory modification<\/li>\n<li>Emolliency<\/li>\n<li>Slip<\/li>\n<li>Spreadability<\/li>\n<li>Volatile carrier properties<\/li>\n<\/ul>\n<p>For true humectant moisturization, ingredients such as glycerin may be more appropriate.<\/p>\n<h2>Is Cyclopentasiloxane Water-Soluble?<\/h2>\n<p>No.<\/p>\n<p>Cyclopentasiloxane is <strong>not soluble in water<\/strong>.<\/p>\n<p>It is compatible with many:<\/p>\n<ul>\n<li>Silicones<\/li>\n<li>Cosmetic esters<\/li>\n<li>Oil-phase ingredients<\/li>\n<li>Selected fragrance materials<\/li>\n<\/ul>\n<p>In water-containing creams or lotions, an appropriate emulsification or silicone-emulsification system may be required.<\/p>\n<h2>Use in Soap<\/h2>\n<p>Cyclopentasiloxane should <strong>not be promoted as a conventional soap-making ingredient<\/strong>.<\/p>\n<p>Traditional soap is produced through the saponification of oils with sodium hydroxide or potassium hydroxide.<\/p>\n<p>Cyclopentasiloxane:<\/p>\n<ul>\n<li>Does not participate in saponification<\/li>\n<li>Does not replace soap-making oils<\/li>\n<li>Does not replace NaOH or KOH<\/li>\n<li>Is not necessary for traditional cold process soap<\/li>\n<\/ul>\n<p>More importantly, regulatory restrictions significantly limit its use in wash-off products in the European Union.<\/p>\n<h2>Important EU Restriction for Soap &amp; Rinse-Off Cosmetics<\/h2>\n<p>In the European Union, Cyclopentasiloxane (D5) has been restricted in <strong>wash-off cosmetic products<\/strong> since:<\/p>\n<p><strong>31 January 2020<\/strong><\/p>\n<p>D5 must be present at <strong>less than 0.1% by weight<\/strong> in such products.<\/p>\n<p>Wash-off products include products that are normally rinsed away with water after application.<\/p>\n<p>Examples include:<\/p>\n<ul>\n<li>Soap<\/li>\n<li>Shampoo<\/li>\n<li>Shower gel<\/li>\n<li>Facial cleanser<\/li>\n<li>Rinse-off conditioner<\/li>\n<\/ul>\n<p>Therefore, recommendations such as:<\/p>\n<p><strong>\u201cUse Cyclopentasiloxane at 1\u20135% in soap\u201d<\/strong><\/p>\n<p>are not appropriate for EU-market rinse-off cosmetics.<\/p>\n<h2>Upcoming EU Restriction for Leave-On Cosmetics<\/h2>\n<p>Under Commission Regulation (EU) 2024\/1328, the restriction will also apply to cosmetic products other than wash-off products after:<\/p>\n<p><strong>6 June 2027<\/strong><\/p>\n<p>From that date, D5 may not be placed on the EU market in these cosmetic products at a concentration equal to or greater than:<\/p>\n<p><strong>0.1% by weight<\/strong><\/p>\n<p>This affects traditional D5 applications such as:<\/p>\n<ul>\n<li>Hair serums<\/li>\n<li>Makeup primers<\/li>\n<li>Foundations<\/li>\n<li>Leave-in hair products<\/li>\n<li>Skin serums<\/li>\n<li>Leave-on creams<\/li>\n<\/ul>\n<p>For new products intended for the European market, formulators should therefore consider alternative technologies.<\/p>\n<h2>Regulatory Status Depends on Market<\/h2>\n<p>Requirements for Cyclopentasiloxane differ between countries and regions.<\/p>\n<p>Always check regulations applicable to the intended market, including:<\/p>\n<ul>\n<li>European Union<\/li>\n<li>T\u00fcrkiye<\/li>\n<li>United Kingdom<\/li>\n<li>United States<\/li>\n<li>Gulf countries<\/li>\n<li>Asian markets<\/li>\n<li>Other export markets<\/li>\n<\/ul>\n<p>A concentration suitable in one market may not be permitted in another.<\/p>\n<h2>Why Is D5 Restricted in the EU?<\/h2>\n<p>The EU restriction is primarily associated with the environmental properties of cyclic siloxanes.<\/p>\n<p>D5 has been identified as a substance of environmental concern because of its very persistent and very bioaccumulative properties.<\/p>\n<p>The restriction therefore does not simply mean that Cyclopentasiloxane was found to be inherently unsafe for normal skin contact.<\/p>\n<p>The environmental release of the material is a major regulatory consideration.<\/p>\n<h2>Cosmetic Safety<\/h2>\n<p>The Scientific Committee on Consumer Safety previously concluded that D5 was safe at the cosmetic concentrations evaluated, with exceptions including certain aerosol applications.<\/p>\n<p>Professional formulators should distinguish between:<\/p>\n<ul>\n<li>Consumer cosmetic safety<\/li>\n<li>Environmental restrictions<\/li>\n<li>Market-specific legal requirements<\/li>\n<\/ul>\n<p>These are separate considerations.<\/p>\n<h2>Spray Applications<\/h2>\n<p>Special care should be taken with aerosolized and spray products.<\/p>\n<p>Inhalation exposure can substantially alter safety assessment.<\/p>\n<p>The SCCS previously expressed specific concerns regarding certain:<\/p>\n<ul>\n<li>Hair styling aerosols<\/li>\n<li>Sun-care spray products<\/li>\n<\/ul>\n<p>For this reason, do not automatically transfer usage levels from non-spray formulations into aerosol or spray applications.<\/p>\n<h2>Processing<\/h2>\n<p>Cyclopentasiloxane is volatile.<\/p>\n<p>For formulations in markets where its use is legally permitted, unnecessary heating should generally be minimized.<\/p>\n<p>A practical processing approach may include:<\/p>\n<ol start=\"1\">\n<li>Prepare the main formulation.<\/li>\n<li>Cool the batch where necessary.<\/li>\n<li>Add Cyclopentasiloxane during an appropriate lower-temperature stage.<\/li>\n<li>Mix in a covered vessel where practical.<\/li>\n<li>Minimize prolonged exposure to heat and open air.<\/li>\n<\/ol>\n<p>The exact process should follow the formulation and supplier TDS.<\/p>\n<h2>Volatility During Manufacturing<\/h2>\n<p>Because Cyclopentasiloxane evaporates relatively easily:<\/p>\n<ul>\n<li>Keep containers closed.<\/li>\n<li>Avoid unnecessary heating.<\/li>\n<li>Avoid long open-vessel mixing.<\/li>\n<li>Minimize excessive air movement over the product.<\/li>\n<\/ul>\n<p>Loss through evaporation can change the actual composition of the finished formulation.<\/p>\n<h2>Typical Historic Usage Levels<\/h2>\n<p>Historically, Cyclopentasiloxane has been used at levels substantially above 0.1% in various leave-on products.<\/p>\n<p>However, because regulatory limits are changing, <strong>historic usage ranges should not be treated as current universal recommendations<\/strong>.<\/p>\n<p>For products intended for sale today, determine the allowed concentration according to:<\/p>\n<ul>\n<li>Product type<\/li>\n<li>Target country<\/li>\n<li>Date the product will be placed on the market<\/li>\n<li>Applicable environmental restrictions<\/li>\n<\/ul>\n<h2>Cyclopentasiloxane Alternatives<\/h2>\n<p>For new European formulations, manufacturers may consider alternative volatile or dry-touch emollient systems.<\/p>\n<p>Possible categories include:<\/p>\n<ul>\n<li>Lightweight cosmetic esters<\/li>\n<li>Volatile hydrocarbons permitted for cosmetic use<\/li>\n<li>Silicone alternatives<\/li>\n<li>Hemisqualane-type emollients<\/li>\n<li>Low-viscosity natural-origin emollients<\/li>\n<\/ul>\n<p>No single ingredient necessarily reproduces all properties of D5.<\/p>\n<p>Replacement systems should be evaluated for:<\/p>\n<ul>\n<li>Spreadability<\/li>\n<li>Evaporation profile<\/li>\n<li>Dry-touch effect<\/li>\n<li>Compatibility<\/li>\n<li>Pigment wetting<\/li>\n<li>Hair feel<\/li>\n<li>Stability<\/li>\n<\/ul>\n<h2>Cyclopentasiloxane vs. Dimethicone<\/h2>\n<p>These two silicones behave differently.<\/p>\n<h3>Cyclopentasiloxane<\/h3>\n<ul>\n<li>Volatile<\/li>\n<li>Lightweight<\/li>\n<li>Evaporates after application<\/li>\n<li>Excellent spreading agent<\/li>\n<li>Dry, silky sensory profile<\/li>\n<\/ul>\n<h3>Dimethicone<\/h3>\n<ul>\n<li>Generally non-volatile<\/li>\n<li>Remains on the skin or hair<\/li>\n<li>Provides conditioning and film-forming effects<\/li>\n<li>Available in many viscosities<\/li>\n<\/ul>\n<p>They should not automatically be treated as interchangeable ingredients.<\/p>\n<h2>Product Details<\/h2>\n<p><strong>Product Name:<\/strong> Cyclopentasiloxane<br \/>\n<strong>INCI Name:<\/strong> Cyclopentasiloxane<br \/>\n<strong>Chemical Name:<\/strong> Decamethylcyclopentasiloxane<br \/>\n<strong>Abbreviation:<\/strong> D5<br \/>\n<strong>CAS Number:<\/strong> 541-02-6<br \/>\n<strong>EC Number:<\/strong> 208-764-9<br \/>\n<strong>Weight:<\/strong> 250 g<br \/>\n<strong>Form:<\/strong> Clear, Colorless Liquid<br \/>\n<strong>Primary Functions:<\/strong> Volatile Carrier \/ Emollient \/ Solvent \/ Spreading Agent \/ Sensory Modifier<br \/>\n<strong>Water Solubility:<\/strong> Insoluble<br \/>\n<strong>Applications:<\/strong> Professional Cosmetic Formulation, subject to local regulatory restrictions<\/p>\n<h2>pH Information<\/h2>\n<p>Cyclopentasiloxane is an essentially anhydrous silicone fluid.<\/p>\n<p>For this reason, assigning a general specification such as:<\/p>\n<p><strong>pH 5.0\u20137.0<\/strong><\/p>\n<p>to the raw material is not particularly meaningful.<\/p>\n<p>The pH of the complete water-containing finished product should instead be measured.<\/p>\n<h2>Purity<\/h2>\n<p>Only describe the product as:<\/p>\n<p><strong>100% Pure Cyclopentasiloxane<\/strong><\/p>\n<p>if the supplier COA confirms this.<\/p>\n<p>Commercial silicone fluids may contain:<\/p>\n<ul>\n<li>D5<\/li>\n<li>D6<\/li>\n<li>Other cyclic siloxanes<\/li>\n<li>Trace impurities<\/li>\n<\/ul>\n<p>This is especially important because EU restrictions apply separately to specified cyclic silicones.<\/p>\n<p>Professional users should review:<\/p>\n<ul>\n<li>COA<\/li>\n<li>SDS<\/li>\n<li>TDS<\/li>\n<li>D4\/D5\/D6 profile<\/li>\n<li>Purity<\/li>\n<li>Regulatory declaration<\/li>\n<\/ul>\n<p>before formulation.<\/p>\n<h2>Safety Information<\/h2>\n<p>Cyclopentasiloxane is a professional cosmetic raw material.<\/p>\n<p>During handling:<\/p>\n<ul>\n<li>Avoid eye contact.<\/li>\n<li>Avoid ingestion.<\/li>\n<li>Avoid unnecessary inhalation of vapor or mist.<\/li>\n<li>Do not aerosolize without an appropriate safety assessment.<\/li>\n<li>Work with suitable ventilation.<\/li>\n<li>Keep away from ignition or heat sources according to the SDS.<\/li>\n<li>Follow the supplier&#8217;s SDS and TDS.<\/li>\n<li>Verify regulatory compliance before commercial use.<\/li>\n<\/ul>\n<h2>Storage<\/h2>\n<p>Store Cyclopentasiloxane:<\/p>\n<ul>\n<li>In tightly closed packaging<\/li>\n<li>In a cool and dry location<\/li>\n<li>Away from excessive heat<\/li>\n<li>Away from direct sunlight<\/li>\n<li>Protected from unnecessary evaporation<\/li>\n<li>Away from contamination<\/li>\n<\/ul>\n<p>Keep containers closed immediately after dispensing.<\/p>\n<h2>Wholesale &amp; Professional Raw Material Supply<\/h2>\n<p>We supply <strong>Cyclopentasiloxane and other cosmetic silicones, emollients, esters and formulation raw materials in wholesale quantities<\/strong> for laboratories, cosmetic manufacturers, formulators and professional product developers.<\/p>\n<p>Because regulatory restrictions on D5 vary by market and product category, customers should specify:<\/p>\n<ul>\n<li>Target market<\/li>\n<li>Intended application<\/li>\n<li>Required quantity<\/li>\n<li>Product format<\/li>\n<li>Expected launch date<\/li>\n<\/ul>\n<p>before developing a commercial formulation.<\/p>\n<p>We also provide <strong>private label and contract manufacturing services<\/strong> for skincare, hair-care and personal-care products using ingredients and technologies compliant with the intended target market.<\/p>\n<p>For new European-market projects, alternative D5-free sensory systems can be evaluated where appropriate.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cyclopentasiloxane (D5) is a lightweight, volatile silicone used to improve spreadability, slip and silky dry-touch sensory properties in cosmetic formulations. Traditionally used in hair serums, makeup, skincare and selected personal-care products, it evaporates after application and helps reduce heavy or greasy feel. Use must comply with the regulatory restrictions of the intended market.<\/p>\n","protected":false},"featured_media":30772,"template":"","meta":[],"product_brand":[],"product_cat":[248,53],"product_tag":[1840,1854,1855,460,1851,1852,1860,1856,1857,1858,1861,1859,1853],"class_list":["post-29346","product","type-product","status-publish","has-post-thumbnail","product_cat-cosmetic-raw-materials","product_cat-natural-oils","product_tag-cosmetic-sensory-modifier","product_tag-cosmetic-silicone","product_tag-cosmetic-spreading-agent","product_tag-cyclopentasiloxane","product_tag-cyclopentasiloxane-d5","product_tag-d5-silicone","product_tag-decamethylcyclopentasiloxane","product_tag-dry-touch-emollient","product_tag-hair-serum-ingredient","product_tag-makeup-formulation-ingredient","product_tag-professional-cosmetic-raw-materials","product_tag-silicone-raw-material","product_tag-volatile-silicone","first","instock","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cyclopentasiloxane (D5) 250 g \u2013 Volatile Silicone for Cosmetic Formulations - Soap Making &amp; Kits &amp; E Books &amp; Recipes<\/title>\n<meta name=\"description\" content=\"Cyclopentasiloxane (D5) 250 g volatile silicone for professional cosmetic formulations. 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