What Is Polyquaternium-82?
Polyquaternium-82 is a modern conditioning polymer created by linking the naturally derived surfactant lauryl glucoside with 1,3-dichloro-2-propanol, then converting the remaining chloropropanol groups into positively charged quaternary ammonium sites using trimethylamine. The result is a water-soluble molecule that carries a gentle cleansing sugar backbone plus quats known for their ability to cling to hair and skin. First introduced in the early 2000s as formulators searched for lightweight conditioning agents that would not weigh hair down, it quickly found a place in both rinse-off and leave-on products.
Manufacturing starts with lauryl glucoside, a nonionic cleanser obtained from coconut or palm fatty alcohol and glucose. This sugar-based surfactant is reacted under controlled heat with 1,3-dichloro-2-propanol to create a crosslinked network. A final quaternization step with trimethylamine adds the cationic sites that give Polyquaternium-82 its conditioning strength and mild antimicrobial boost. Because the process occurs in water at relatively low temperatures, the finished polymer is considered gentle and eco-friendly compared with older synthetic quats.
You will most often see Polyquaternium-82 in shampoos, co-wash formulas, micellar facial cleansers, hair masks, anti-frizz serums, spray-on detanglers, color-protecting conditioners and lightweight leave-in creams. Skin care brands also use it in hydrating toners and wash-off face masks where a mild cleanser paired with a soft after-feel is desirable.
Polyquaternium-82’s Cosmetic Benefits/Uses
Formulators choose Polyquaternium-82 because it delivers several helpful actions in a single ingredient
- Antioxidant: The sugar-derived backbone can scavenge free radicals, helping protect hair and skin from environmental stress that can lead to dullness or damage
- Cleansing: Its lauryl glucoside segments lift away dirt and excess oil while the cationic sites reduce the squeaky dry feel often caused by stronger surfactants giving a mild yet effective cleanse
- Hair Conditioning: The positive charge binds to negatively charged hair fibers smoothing the cuticle, boosting shine, reducing static and making detangling easier without heavy buildup
Who Can Use Polyquaternium-82
Thanks to its mild sugar-based cleanser and lightweight conditioning charge Polyquaternium-82 suits most skin and hair types. Oily and combination complexions appreciate that it rinses clean without residue while dry or mature skin enjoys the soft conditioning film it leaves behind. Its low irritation profile also makes it friendly for sensitive skin. People with very reactive or allergy-prone skin should still monitor for individual sensitivities but the ingredient itself is regarded as gentle.
Because the raw materials come from coconut or palm oil and glucose and no animal-derived feedstocks are used Polyquaternium-82 is considered vegan and vegetarian friendly. Ethical shoppers should still confirm that the finished product is cruelty-free if that is important to them.
Current safety data do not flag any concerns for topical use during pregnancy or breastfeeding. The polymer is too large to penetrate deeply and it is not known to interfere with hormones. This is not medical advice so expectant or nursing parents should show any personal care product to their healthcare provider before regular use to be extra certain.
Polyquaternium-82 does not make skin or hair more sensitive to sunlight so no special photoprotection steps are required beyond normal daily sunscreen use.
Potential Side Effects/Adverse Reactions
Individual reactions to topical Polyquaternium-82 can vary. The points below cover potential issues users might encounter in rare cases. When the polymer is formulated correctly most people will notice only the intended cleansing and conditioning benefits.
- Mild skin or scalp irritation presenting as redness itching or tightness
- Allergic contact dermatitis for those specifically sensitized to quaternary ammonium compounds
- Temporary eye stinging or watering if the product accidentally enters the eyes
- Product buildup that can leave hair limp or weighed down if high-quat formulas are not rinsed thoroughly
If any unwanted reaction occurs stop using the product and consult a qualified medical professional for guidance.
Comedogenic Rating
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Polyquaternium-82 is a large water-soluble polymer that sits on the surface then rinses away easily without sinking into pores or mixing with skin sebum. It lacks the heavy oils and waxes that typically trigger clogged pores so it is considered non-comedogenic. That makes it generally suitable for people prone to acne or breakouts.
Because the molecule is positively charged it tends to bond to hair and skin in a thin film but this layer is lightweight and washes off with normal cleansing so pore blockage remains unlikely.
Summary
Polyquaternium-82 acts as an antioxidant cleanser and hair conditioner in one ingredient. Its sugar-based surfactant segments lift away dirt while the cationic quats stick to hair fibers to smooth cuticles reduce static and add shine. The polymer’s size and water solubility keep it gentle on skin and easy to rinse.
Although not as famous as long-standing quats like Polyquaternium-10 it has been gaining quiet popularity in modern sulfate-free shampoos lightweight leave-ins and micellar cleansers thanks to its mild eco-friendly profile.
Current research shows it is safe for topical use with a very low irritation risk. Still every skin is unique so it is wise to patch test any new product that features Polyquaternium-82 before full use.