What Is Disodium C12-14 Sec-Pareth-7 Sulfosuccinate?
Disodium C12-14 Sec-Pareth-7 Sulfosuccinate is a synthetic ingredient made from a mix of medium length fatty alcohols that have been reacted with ethylene oxide seven times on average, then partially linked to sulfosuccinic acid and finally neutralized with sodium. The result is a mild surfactant that carries two sodium ions, which helps it dissolve in water with ease.
This class of ingredients first appeared in the late 20th century when formulators wanted cleansers that could foam well without the harshness of older sulfates. By tweaking the length of the fatty chain and the amount of ethoxylation, chemists created a molecule that cleans effectively yet feels gentle on skin.
Manufacturing begins with petroleum or plant based fatty alcohols in the C12-C14 range. These alcohols go through ethoxylation, a controlled reaction that adds small units of ethylene oxide. Afterward the partly ethoxylated alcohols are combined with sulfosuccinic anhydride, creating an ester-sulfate bond. The last step is neutralization with sodium hydroxide, giving the finished disodium salt that is then purified and dried.
You will most often see Disodium C12-14 Sec-Pareth-7 Sulfosuccinate in face cleansers, body washes, bubble baths, baby shampoos, micellar waters, exfoliating scrubs, makeup removers and some mild hand soaps. It can also show up in cream or gel masks where gentle foaming helps lift away dirt while rinsing.
Disodium C12-14 Sec-Pareth-7 Sulfosuccinate’s Cosmetic Benefits/Uses
This ingredient is prized by formulators because it can play several helpful roles at once.
- Cleansing: Its surfactant structure loosens oil, sweat and makeup so they rinse away with water leaving skin fresh without a tight feel
- Skin Conditioning: The ethoxylated fatty chain deposits a light film that helps skin feel soft and smooth after washing
- Foam Boosting: It stabilizes bubbles, giving products a rich lather that consumers associate with thorough cleansing
- Hydrotrope: It improves the solubility of oils and fragrances in water based formulas allowing brands to create clear or low viscosity products without extra solvents
Who Can Use Disodium C12-14 Sec-Pareth-7 Sulfosuccinate
Because it is milder than traditional sulfates Disodium C12-14 Sec-Pareth-7 Sulfosuccinate works well for most skin types including normal, oily, combination and even many sensitive or mature skins. Extremely dry or eczema-prone skin may still prefer creamier non-foaming cleansers since any surfactant can lift away some protective lipids, though this ingredient is far less stripping than harsher options.
The molecule is synthetic and usually made from either petrochemical or plant-derived alcohols with no animal by-products, so formulations that use it can be suitable for vegetarians and vegans. Cruelty-free status depends on a brand’s overall policy rather than the ingredient itself.
Current safety assessments show no reproductive or developmental concerns when the ingredient is used topically, and systemic absorption through intact skin is negligible. Pregnant or breastfeeding individuals can generally use products containing it, but this is not medical advice and anyone expecting or nursing should review their full routine with a qualified healthcare professional.
Disodium C12-14 Sec-Pareth-7 Sulfosuccinate does not heighten photosensitivity, so there is no need for extra sun precautions beyond a normal daily SPF. Its mildness also makes it popular in baby shampoos and tear-free washes, further supporting its broad suitability.
Potential Side Effects/Adverse Reactions
Every skin is unique, so reactions to topical Disodium C12-14 Sec-Pareth-7 Sulfosuccinate can vary. The points below outline potential, though uncommon, issues. When used at appropriate levels in a well-formulated product most people will not notice any of these effects.
Eye stinging or mild conjunctival irritation if the product accidentally gets into the eyes
Transient redness or tightness on very dry or compromised skin
Contact dermatitis in individuals allergic to ether sulfates or sulfosuccinate esters
Excessive dryness or flaking when combined with other strong surfactants and used too frequently
If any of these reactions occur stop using the product and consult a healthcare professional if irritation persists or worsens.
Comedogenic Rating
Rating: 1 out of 5. Disodium C12-14 Sec-Pareth-7 Sulfosuccinate is water soluble and designed to rinse off cleanly, so it does not linger in pores or leave a greasy film that could trap dead skin cells. Its molecular size and high polarity further limit any chance of clogging. This low residue profile means it is generally safe for acne prone or breakout prone skin. In rare cases formulas that pair it with heavy oils or butters could still feel occlusive, but that would be due to those co-ingredients rather than the surfactant itself.
Summary
Disodium C12-14 Sec-Pareth-7 Sulfosuccinate works as a gentle cleanser, light skin conditioner, foam booster and hydrotrope. Its partly ethoxylated fatty chain lifts oils and dirt while the sulfosuccinate portion stabilizes rich lather and keeps fragrances or oils dissolved in water based products. Because it cleans effectively without the sharp sting or dryness of traditional sulfates, it has become a go-to surfactant in face washes, baby shampoos and micellar waters, though it remains less famous than household names like SLS or SLES.
Safety data show it is mild, non sensitizing for most users and not likely to clog pores. Still, everyone’s skin is different so doing a quick patch test when starting any new product is a sensible extra step.