What Is Ppg-24-Buteth-27?
Ppg-24-Buteth-27 is a synthetic ingredient created by reacting propylene oxide and ethylene oxide with a small amount of butyl alcohol. The result is a long chain molecule that can attract and hold water while also having a light, silky feel. The “PPG-24” part tells us there are 24 propylene glycol units, and “Buteth-27” signals 27 ethylene glycol units capped with a butyl group. This balance of water-loving and oil-loving parts makes it an effective conditioning agent.
Chemists first explored these kinds of polymers in the 1960s as they searched for gentler alternatives to heavy oils. By the late 1980s manufacturers began adding them to hair and skin products because they delivered softness without greasiness. Today production happens in large stainless-steel reactors where temperature and pressure are carefully controlled. The propylene oxide and ethylene oxide are added stepwise to butyl alcohol, then the finished polymer is purified and tested for cosmetic use.
You will most often spot Ppg-24-Buteth-27 in lightweight moisturizers, leave-on hair conditioners, styling creams, facial masks, after-sun gels and anti-aging serums. Formulators like it because it mixes easily with water, boosts spreadability and leaves a smooth finish.
Ppg-24-Buteth-27’s Cosmetic Benefits/Uses
In formulas this ingredient serves two main roles that center on conditioning.
- Hair conditioning: It forms a delicate film on strands that smooths the cuticle, reduces static and enhances softness so hair feels silkier and has more shine
- Skin conditioning: Its humectant nature draws moisture to the skin surface, helping to keep it hydrated while giving products a pleasant, non-sticky slip
Who Can Use Ppg-24-Buteth-27
Ppg-24-Buteth-27 is light and non greasy so it works well for normal, combination and oily skin. Dry skin may appreciate it as an extra layer but might still need a heavier occlusive on top. It is generally gentle enough for sensitive skin because it has a low irritation profile though individual tolerance can vary.
The ingredient is produced entirely from synthetic raw materials and contains no animal derived components. This makes it suitable for both vegans and vegetarians.
No specific warnings have been issued for women who are pregnant or breastfeeding. Current safety data show no evidence of reproductive or developmental risk at the tiny levels used in cosmetics. That said this is not medical advice and anyone who is pregnant or nursing should run any skin or hair product past a healthcare professional just to be safe.
Ppg-24-Buteth-27 does not increase photosensitivity. You do not need to change your usual sun protection habits when using products that include it.
Potential Side Effects/Adverse Reactions
Responses to any cosmetic ingredient can vary from person to person. The effects listed below are only potential issues and are unlikely for most users when the product is well formulated and used as directed.
- Mild skin irritation – can show up as temporary redness or a stinging sensation, more common in very sensitive skin
- Contact dermatitis – rare cases of localized rash or itching have been reported, usually linked to individual allergy
- Eye irritation – may cause watering or burning if the ingredient accidentally gets into the eyes during application
- Dryness or tight feel – if used in a very high concentration without additional emollients some users might notice their skin feels slightly dry
If any unwanted reaction occurs stop using the product and consult a qualified healthcare provider.
Comedogenic Rating
Rating: 0 / 5
Ppg-24-Buteth-27 is a large, water-soluble polymer that sits on the surface, adds slip and rinses away easily. It contains no heavy oils or waxes that can clog pores and its molecular size means it cannot get inside follicular openings to form plugs. For these reasons it is considered non-comedogenic.
Suitable for acne-prone skin.
Because it is usually present at low percentages and is often paired with light gel or lotion bases, the overall formula is also unlikely to feel occlusive.
Summary
Ppg-24-Buteth-27 conditions hair by laying down a thin smoothing film that reduces static and boosts shine. On skin it acts as a humectant, drawing in water and leaving a silky touch that helps products spread more evenly. Its popularity sits in the middle of the pack: not as famous as hyaluronic acid yet valued by formulators who want lightweight hydration without greasiness.
Current safety data show a very low risk of irritation or sensitization at the levels used in cosmetics, making it a generally safe choice for daily use. As with any new product it is wise to perform a quick patch test to check personal compatibility.