What Is Tetradecenyl Stearylsuccinamide?
Tetradecenyl Stearylsuccinamide is a synthetic lipid derived from fatty acids that are commonly sourced from plant oils such as coconut or palm. Chemically, it combines a long-chain stearyl group with succinic acid, giving it both oil-loving and water-friendly parts. This unique structure allows the ingredient to sit comfortably on the skin and attract moisture at the same time.
The compound first gained attention in the late 1990s when formulators looked for stable, skin-softening agents that could replace heavier mineral oils. Advances in green chemistry soon made it possible to create Tetradecenyl Stearylsuccinamide through a controlled reaction that bonds stearyl alcohol with a modified succinic anhydride, followed by purification steps to remove residual solvents. The result is a smooth, wax-like substance that melts easily into creams and lotions.
Today you will most often find Tetradecenyl Stearylsuccinamide in moisturizers, overnight masks, anti-aging serums, after-sun gels and even in some color cosmetics where a silky texture is desired. It is prized for its ability to improve spreadability while giving formulas a lightweight, velvety feel.
Tetradecenyl Stearylsuccinamide’s Cosmetic Benefits/Uses
Below are the main roles Tetradecenyl Stearylsuccinamide plays when added to a topical product:
- Humectant: Draws water from the environment into the upper layers of the skin helping to maintain day-long hydration
- Skin Conditioning: Leaves the skin feeling smoother and softer which can enhance overall skin appearance
- Emollient: Fills in microscopic gaps between skin cells creating a silky surface and reducing the look of rough patches
- Skin Protecting: Forms a light barrier on the skin that helps defend against moisture loss and everyday environmental stress
Who Can Use Tetradecenyl Stearylsuccinamide
Tetradecenyl Stearylsuccinamide is generally well tolerated by most skin types including dry, normal, combination and oily skin. Its lightweight emollient nature lets it soften without feeling greasy so even those prone to excess oil often find it comfortable. Sensitive skin users typically do fine with it thanks to its low fragrance content, though anyone with a history of lipid sensitivities should remain cautious. Extremely acne-prone individuals might prefer to monitor use since any occlusive agent can, in rare cases, trap debris in very reactive pores.
The ingredient is produced from plant-derived fatty acids using a synthetic process that does not rely on animal by-products. Because of this it is considered suitable for both vegetarians and vegans.
No research has shown that topical Tetradecenyl Stearylsuccinamide poses specific risks during pregnancy or while breastfeeding. This is not medical advice and anyone who is pregnant or nursing should review all skincare choices with a qualified healthcare provider just to be safe.
The molecule is not known to increase photosensitivity, so it does not make skin more vulnerable to sunburn. Standard daytime sun protection is still recommended for overall skin health.
Potential Side Effects/Adverse Reactions
Responses to topical Tetradecenyl Stearylsuccinamide differ from person to person. The points below outline potential side effects yet most users will not experience them when the ingredient is correctly formulated in a product.
- Mild skin irritation such as redness or itching
- Transient stinging or warming sensation on very dry or compromised skin
- Allergic contact dermatitis in individuals sensitive to succinamide derivatives
- Clogged pores or small breakouts in highly congestion-prone skin
- Eye irritation if the product migrates into the ocular area
If any discomfort or visible reaction occurs stop using the product and consult a dermatologist or healthcare professional for guidance.
Comedogenic Rating
Rating: 1 out of 5
Tetradecenyl Stearylsuccinamide earns a low score because its branched structure and balanced oil-to-water affinity let it sit lightly on the skin without creating a dense, pore-blocking film. It melts at body temperature, spreads thinly and mixes well with water-binding ingredients, which keeps residue minimal. For most acne-prone users this makes it an acceptable choice, though highly reactive skin could still notice congestion if several other rich lipids are present in the same formula.
Worth noting: the ingredient is often used at relatively low percentages, further reducing any clogging risk.
Summary
Tetradecenyl Stearylsuccinamide acts as a multitasking humectant, emollient, skin conditioning and protective agent. Its dual nature attracts water to boost hydration while the long fatty chain smooths gaps between skin cells, leaving a velvety finish that locks in moisture and shields against everyday stress.
Although not a headline ingredient in mainstream beauty, it has a solid following among formulators who want a light, plant-derived alternative to heavier oils. You will see it pop up most often in mid-to-premium moisturizers and leave-on treatments.
Current safety data show it to be low risk for irritation or sensitization when used as directed. As with any new skincare product a quick patch test is wise to confirm personal compatibility.