Cetrimonium Dimethicone Peg-8 Olivate/Succinate: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 24, 2025
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All information on this page is verified using publicly available nomenclature standards and reference materials from The Personal Care Products Council (PCPC) and the European Commission's CosIng database. Our analyses are based on technical data from these sources to ensure accuracy and reliability.

What Is Cetrimonium Dimethicone Peg-8 Olivate/Succinate?

Cetrimonium Dimethicone Peg-8 Olivate/Succinate is a hybrid molecule that blends the smoothing power of silicones with the nourishing touch of olive derived fatty acids. Chemically it forms when cetyl trimethylamine reacts with Dimethicone Peg-8 Succinate and olive acid, producing a siloxane polymer that carries both water loving and oil loving parts. This dual nature lets it spread easily, coat hair or skin in a thin film and rinse away without heavy buildup.

The idea of pairing silicones with natural oils took hold in the late 1990s as formulators looked for ways to tame the flat artificial feel of early silicone products. By grafting olive components onto dimethicone chemists kept the glide consumers love while adding a softer more skin friendly finish. The cationic (positively charged) cetrimonium portion joined later to boost conditioning on negatively charged hair fibers.

Manufacturing starts with food grade olive oil that is broken down into its fatty acids. These acids react with Peg-8 succinate modified dimethicone under controlled heat then the mixture is quaternized with cetyl trimethylamine. The result is a viscous fluid that can be poured directly into water or oil phases, making it easy to use in modern labs.

You will spot Cetrimonium Dimethicone Peg-8 Olivate/Succinate in rinse off and leave in conditioners, defrizz serums, hair masks, curl creams, body lotions, facial moisturizers, after sun gels and lightweight anti aging emulsions where a silky feel without greasiness is desired.

Cetrimonium Dimethicone Peg-8 Olivate/Succinate’s Cosmetic Benefits/Uses

This multi tasking ingredient earns its place in formulas by serving several roles at once.

  • Hair conditioning – The cationic charge helps the polymer cling to damaged hair shafts, smoothing rough cuticles, reducing static and making detangling easier so hair feels softer and looks shinier
  • Skin conditioning – On skin it forms a breathable micro film that softens dry patches, improves slip during application and leaves a velvety finish without clogging pores
  • Emollient – The olive fatty segments deliver lightweight moisture that fills in micro cracks on the skin surface or hair fiber giving an immediate smooth supple feel

Who Can Use Cetrimonium Dimethicone Peg-8 Olivate/Succinate

This ingredient is generally friendly to all skin types including dry, normal, combination and oily skin because it delivers light emollience without leaving a heavy residue. Those with very sensitive or highly reactive skin can still tolerate it in most cases since the molecule is large and tends to sit on the surface rather than penetrate deeply, though individual sensitivities always vary.

The compound is synthesized from olive fatty acids and petrochemical-derived silicones, with no animal sourced materials involved, so it is considered suitable for both vegans and vegetarians.

No data link the ingredient to hormonal activity or fetal development issues. Current safety assessments classify it as safe for use during pregnancy and breastfeeding when applied topically in cosmetic amounts. That said this is not medical advice and anyone who is pregnant or nursing should show any new product to a healthcare professional before regular use just to be sure.

Cetrimonium Dimethicone Peg-8 Olivate/Succinate is not known to increase photosensitivity, meaning it will not make skin more prone to sunburn. Standard daytime sun protection should still be followed as part of any healthy routine.

Potential Side Effects/Adverse Reactions

Responses to topical Cetrimonium Dimethicone Peg-8 Olivate/Succinate differ from person to person. The points below outline potential issues yet they remain uncommon for the average user when the ingredient is included at typical cosmetic levels.

  • Mild skin irritation – rare stinging or redness, most often in people with compromised skin barriers
  • Contact allergy – very uncommon sensitization that shows as itching or a rash after repeated exposure
  • Eye irritation – temporary stinging if product accidentally gets into the eyes while rinsing conditioner or mask
  • Hair buildup – in heavy leave-in formulations overuse may leave hair looking weighed down or greasy especially on very fine strands

If any irritation, redness or discomfort develops discontinue use and consult a healthcare professional for guidance.

Comedogenic Rating

Rating: 1 out of 5

Cetrimonium Dimethicone Peg-8 Olivate/Succinate rests on the surface of skin rather than sinking into pores and the olive fatty segments are highly purified so they stay light and non-greasy. This combo forms a thin breathable film that rinses away easily which keeps pore-clogging risk low.

A score of 1 means it is usually suitable for acne-prone or breakout-prone skin when used in normal product levels.

Only if paired with very heavy oils or waxes could the overall formula become more likely to clog pores so check the full ingredient list if you are concerned.

Summary

Cetrimonium Dimethicone Peg-8 Olivate/Succinate serves three main jobs: hair conditioning, skin conditioning and light emollience. The silicone backbone glides over rough surfaces, the olive derived chains add soft moisture and the cationic head helps the molecule grip damaged hair for smooth shiny strands.

It is not a buzzword ingredient but formulators like it because it quietly boosts slip and after-feel in conditioners, leave-ins, lotions and gels without weighing things down.

Safety assessments show it to be low risk for irritation or sensitization so most people can use it without trouble. Still, do a quick patch test with any new product that contains it to be on the safe side.

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