What Is Ppg-23-Steareth-34?
Ppg-23-Steareth-34 is a lab made ingredient that starts with lanolin alcohols, the waxy substance naturally found in sheep wool. Chemists react these alcohols first with propylene oxide then with ethylene oxide, building a chain that averages 33 units of propylene oxide and 34 units of ethylene oxide. The result is a creamy looking liquid or soft solid that dissolves well in both oil and water, making it handy for many beauty formulas.
The cosmetic world began turning to mixed ethoxylated and propoxylated lanolin alcohols in the late 1970s when brands needed gentler alternatives to older, harsher surfactants. Because Ppg-23-Steareth-34 offers reliable texture and skin feel, it has gained steady use in face and body moisturizers, night creams, sheet masks, anti aging serums, hair conditioners, leave in treatments and even some rinse off cleansers.
Ppg-23-Steareth-34’s Cosmetic Benefits/Uses
This multitasker improves both the performance and sensory feel of a formula.
- Emollient – Softens skin and hair by filling in tiny gaps on the surface which leaves a smooth, conditioned feel that lasts after the product is rinsed or wiped away
- Emulsifying – Helps oil and water blend into a stable, uniform cream or lotion so the product does not separate and feels silky instead of greasy or watery
Who Can Use Ppg-23-Steareth-34
Ppg-23-Steareth-34 is generally well tolerated by normal, dry and combination skin thanks to its smooth, cushioning finish. Oily and acne prone skin can usually use it too, though people who easily break out may prefer lighter formulas since the emollient nature can feel rich.
The ingredient is sourced from lanolin so it is not suitable for vegans or strict vegetarians who avoid animal derived substances. Those following a plant based lifestyle should look for synthetic or plant sourced alternatives.
No evidence shows that topical Ppg-23-Steareth-34 poses a specific risk for pregnant or breastfeeding women when used in typical cosmetic doses. This is not medical advice and anyone who is pregnant or nursing should confirm product choices with a qualified healthcare provider to be safe.
The ingredient is not known to increase photosensitivity and does not interact with sunlight in a way that demands extra sun precautions. It also does not interfere with common actives like vitamin C or retinoids so it can be layered comfortably in most routines.
Potential Side Effects/Adverse Reactions
Responses to Ppg-23-Steareth-34 can differ from person to person. The points below outline potential issues but most users experience none of them when the ingredient is used at the levels allowed in finished products.
- Mild skin irritation in very sensitive individuals, presenting as redness or stinging that subsides once the product is removed
- Allergic contact dermatitis in people already sensitized to lanolin derivatives, leading to itchiness or rash
- Temporary pore congestion or small breakouts in users with highly reactive, acne prone skin when the ingredient is used in richer leave on formulas
- Eye irritation or watering if a product containing the ingredient accidentally gets into the eyes
If any discomfort or irritation occurs stop using the product and consult a healthcare professional if symptoms persist or worsen.
Comedogenic Rating
Comedogenic rating: 2 / 5. Ppg-23-Steareth-34 comes from lanolin alcohols which can be mildly pore clogging, yet the long propylene oxide and ethylene oxide chains make the molecule more water friendly and less likely to build up inside follicles than plain lanolin or heavier waxes. Most leave-on formulas use it at low percentages so it sits lightly on skin and rinses clean from hair.
At this level the ingredient is generally fine for people who get the occasional breakout, though those with very stubborn acne may still want to watch how their skin reacts.
Because it is a surfactant-like emollient it can actually help some products rinse away more thoroughly, reducing residue that might otherwise block pores.
Summary
Ppg-23-Steareth-34 acts as an emollient that smooths and softens plus an emulsifier that keeps oil and water blended so creams feel even and stable. It does this by surrounding oil droplets with its water loving ethoxylated end while its oil loving lanolin backbone anchors into the oily phase, giving products a silky glide without heavy greasiness.
It enjoys steady but not superstar popularity: common enough in moisturizers, masks and conditioners yet seldom highlighted on the front label because it works quietly in the background.
Current safety data show low irritation and low comedogenic potential in the amounts used in cosmetics, making it suitable for most skin and hair types. As with any new product users should patch test first to make sure their individual skin tolerates it well.