✦ Primary foam booster that dramatically increases lather volume and creaminess in surfactant-based cleansers
✦ Effective viscosity builder that thickens shampoos and body washes without requiring additional gelling agents
✦ Coconut-derived non-ionic surfactant with strong synergy alongside anionic surfactants like SLES and SLS
✦ Imparts a mild conditioning and smoothing effect on hair strands in rinse-off systems
✦ Functions as a co-emulsifier in oil-in-water emulsion systems at controlled concentrations
✦ Widely used in shampoos, body washes, liquid cleansers, and bath gel formulations
✦ CAS-verified cosmetic grade; use at minimum effective concentration and verify regulatory compliance for your target market

Cocamide DEA is a diethanolamide surfactant produced through the condensation of coconut oil fatty acids with diethanolamine. It has been a widely used ingredient in personal care manufacturing since the mid-20th century, valued for its reliable foam-boosting and viscosity-building performance in rinse-off cleansing systems across shampoos, body washes, and liquid soaps.

What makes Cocamide DEA particularly effective in formulation is its synergistic interaction with anionic surfactants. At usage levels of 1 to 3 percent, it amplifies foam density and creaminess while simultaneously increasing the viscosity of the cleansing base, reducing the need for additional rheology modifiers. Formulators must exercise caution regarding nitrosamine formation potential and must verify current regulatory status in their target market before use, particularly for the EU and California markets.

Bio Shop Pakistan supplies cosmetic-grade Cocamide DEA suitable for professional formulators, shampoo developers, liquid soap manufacturers, and personal care product makers working within compliant and responsible formulation frameworks.

INCI Name : Cocamide DEA
Chemical Name : Coconut oil fatty acid diethanolamide
CAS Number : 68603-42-9
Molecular Formula : Mixture — C12 to C18 fatty acid diethanolamides; no single molecular formula
Appearance : Amber to pale yellow viscous liquid or soft semi-solid
Odor : Mild, faintly fatty
pH (1% solution) : 9.0 – 11.0
Solubility : Soluble in water and ethanol; dispersible in surfactant bases
Specific Gravity : 0.99 – 1.02 at 25°C
Flash Point : Above 93°C
HLB Value : Approximately 14
Recommended Use Level : 1% – 3% in rinse-off products; up to 1% in leave-on (use with caution)
Type : Non-ionic surfactant / foam booster / viscosity builder / co-emulsifier
Shelf Life : 2 years from manufacture date when stored correctly

Skincare (Creams, Serums, Lotions) ★★☆☆☆
Cocamide DEA is not a primary leave-on skincare ingredient and is best avoided in serums and lotions given regulatory and safety concerns. If used at all in leave-on emulsions, keep it well below 1 percent and verify compliance for your target market.

Haircare (Shampoo, Conditioner, Masks) ★★★★☆
This is the core application for Cocamide DEA, particularly in shampoos and clarifying washes where foam performance is critical. Use at 1 to 3 percent alongside SLES or SLS to noticeably enhance lather volume, improve product body, and add a mild conditioning feel.

Soap Making (Cold Process, Melt and Pour) ★★☆☆☆
Cocamide DEA is not suitable for cold process soap making due to its pH sensitivity and chemistry. It can be incorporated into liquid soap bases or melt and pour systems at very low concentrations for foam enhancement only.

Body Care (Scrubs, Butters, Balms) ★☆☆☆☆
Cocamide DEA has no meaningful role in anhydrous body butters, balms, or physical scrub bases. It is relevant only in the rinse-off body wash or shower gel format within this broader category.

Cleansing Products (Body Wash, Facial Wash, Bath Gel) ★★★★★
This is the strongest application for Cocamide DEA, where it delivers maximum foam density and product body in rinse-off cleansing systems. Add at 1 to 3 percent to body wash and facial cleanser bases for a noticeably richer, creamier lather.

In my professional practice, I treat Cocamide DEA as a precision foam-amplifier rather than a base surfactant. I always add it after the primary surfactant system is assembled, blending it gently at 40 to 50 degrees Celsius to ensure full homogenization without excessive agitation. At just 2 percent in an SLES-based shampoo, the improvement in foam creaminess and product body is immediately noticeable — and it substantially reduces the need for synthetic thickeners like carbomer or HPMC in the same system. I always avoid co-formulating it with nitrite-releasing preservatives and rigorously control final pH.

ADVANCED TIP: To minimize nitrosamine formation risk, formulate systems containing Cocamide DEA at a final pH below 7 wherever the product profile allows, completely exclude nitrite-releasing preservatives such as Bronopol and DMDM hydantoin from the formula, and add 0.1 to 0.5 percent tocopherol acetate or sodium metabisulfite as a nitrosamine inhibitor. Run a nitrosamine panel on finished formulations if you are manufacturing at commercial scale for regulated markets.

Normal Skin : ★★★☆☆ — Suitable in rinse-off cleansers at standard levels with no significant irritation expected under correct formulation.
Dry Skin : ★★☆☆☆ — The alkaline pH of Cocamide DEA systems can disrupt the moisture barrier; pair with gentle co-surfactants and humectants.
Oily Skin : ★★★☆☆ — Performs well in oil-removing cleansers when the overall surfactant system pH is properly controlled and balanced.
Combination : ★★★☆☆ — Acceptable in rinse-off cleansers when formulated carefully to avoid stripping drier facial zones.
Sensitive Skin : ★★☆☆☆ — Not a preferred ingredient for sensitive skin formulations; gentler surfactant systems are better suited to this type.
Mature Skin : ★★☆☆☆ — Mature skin benefits from lower-irritancy surfactants; limit Cocamide DEA to rinse-off application at minimum effective levels.
Acne-Prone : ★★☆☆☆ — Potential for minor pore occlusion at higher concentrations; keep usage minimal and ensure the formula is non-comedogenic overall.

CONCEPT 1: Volumizing Foam Shampoo
Usage Level : 2%
Key Ingredients: Sodium Laureth Sulfate, Cocamidopropyl Betaine, Hydrolyzed Wheat Protein, Panthenol
Result : A rich, creamy lathering shampoo with enhanced foam body, improved viscosity, and a mild conditioning effect that leaves hair smooth and manageable.

CONCEPT 2: Deep Cleansing Body Wash
Usage Level : 2.5%
Key Ingredients: Sodium Laureth Sulfate, Glycerin, Aloe Vera Extract, Citric Acid
Result : A thick, dense-lathering body wash with effective cleansing action, a smooth skin feel after rinsing, and noticeably improved product body.

CONCEPT 3: Clarifying Facial Cleanser Gel
Usage Level : 1%
Key Ingredients: Cocamidopropyl Betaine, PEG-7 Glyceryl Cocoate, Panthenol, Allantoin
Result : A mild gel cleanser with stable foam, balanced cleansing action, and a soft post-rinse feel appropriate for normal to oily skin types.

INCI Declared : Yes — required on all cosmetic product labels globally
EU Cosmetics Reg : Restricted — IARC Group 2B classification (2012); verify current Annex II and Annex III status before formulating for the EU market
Rinse-Off Limit : Up to 3% per earlier SCCS guidance; verify current enforceable limits with your regulatory authority before production
Leave-On Limit : Up to 1% with caution; most professional formulators avoid leave-on application entirely
Allergen Alert : Yes — potential skin sensitizer at elevated concentrations; confirmed nitrosamine formation risk with incompatible preservatives
Skin Safety : Safe at recommended rinse-off levels in properly formulated systems; patch test advised for sensitive individuals
Eye Area Use : Avoid — not recommended for eye area products
Ingestion : Not for internal use
Pregnancy Use : Consult physician — regulatory caution applies due to IARC Group 2B classification
Child Safety : Avoid in products for children under 3; use with caution in older age groups and only in rinse-off formats
Ventilation : Recommended when handling in bulk quantities or at elevated temperatures
Storage : Cool dry place, away from direct heat and light; keep container tightly sealed at all times
Container : HDPE or stainless steel preferred; avoid reactive metals and unsealed containers

⚠️ WARNING: Cocamide DEA is classified by IARC as a Group 2B possible carcinogen based on animal dermal application studies. It is listed under California Proposition 65 as a known carcinogen. Nitrosamine formation is a documented risk when this ingredient is combined with nitrite-releasing preservatives such as Bronopol or DMDM hydantoin. Always verify current EU Annex II and Annex III regulatory status before including this ingredient in any product intended for the European market or export. Use at the minimum effective concentration and disclose fully on finished product labeling.

Working pH Range : 7.0 – 11.0 (most effective and stable between pH 8.0 and 10.0)
Heat Stability : Stable up to 70°C; incorporate into formulation at 40 to 50°C for best results
Freeze-Thaw Stable : No — may solidify or phase-separate at low temperatures; warm gently and mix to restore
Emulsion Type : O/W — functions as a co-emulsifier in oil-in-water systems
Emulsification Phase: Hot — incorporate into the warm aqueous phase during formulation
Compatible With : Anionic surfactants (SLES, SLS), amphoteric surfactants (Cocamidopropyl Betaine), non-ionic emulsifiers, glycerin, propylene glycol, conditioning polymers
Incompatible With : Strong acids below pH 5, nitrite-releasing preservatives (Bronopol, DMDM Hydantoin), reactive metal ions, strong oxidizing agents
Oxidation Risk : Low — no significant oxidation concern under normal storage conditions
Discoloration Risk : Possible — may darken to amber over time or with prolonged heat exposure; performance is not affected by color change
Formulation Notes : Always adjust and verify the final formulation pH after incorporating Cocamide DEA. In high-surfactant systems, add Cocamide DEA last to avoid disrupting foam structure already developed by the primary surfactant system.

Q: What does Cocamide DEA actually do in a shampoo formula?
A: Cocamide DEA acts as a foam booster and viscosity builder. It amplifies the lather produced by primary surfactants like SLES and thickens the overall product, reducing the need for separate gelling agents or additional thickeners.

Q: Is Cocamide DEA safe to use in cosmetic formulations today?
A: It is permitted in many markets at low concentrations in rinse-off products, but it carries an IARC Group 2B classification based on animal studies and is listed under California Proposition 65. Formulators must verify current regulatory status in their specific target market and use it at the minimum effective concentration.

Q: Can I use Cocamide DEA in a leave-on cream or lotion?
A: Leave-on applications are strongly discouraged due to the IARC 2B classification and nitrosamine formation risk. For leave-on emulsions requiring a co-emulsifier or thickener, safer alternatives such as cetyl alcohol, stearic acid, or non-ionic emulsifiers are the professional recommendation.

Q: Which preservatives must I avoid when using Cocamide DEA in a formula?
A: Avoid all nitrite-releasing preservatives including Bronopol (2-bromo-2-nitropropane-1,3-diol) and DMDM hydantoin, as they react with the diethanolamine component to form potentially harmful nitrosamines. Phenoxyethanol, ethylhexylglycerin, and sodium benzoate are safer co-preservative choices in these systems.

Q: How does Cocamide DEA compare to Cocamide MIPA as a foam-boosting alternative?
A: Cocamide MIPA (monoisopropanolamide) is the widely preferred modern alternative and does not carry the same nitrosamine formation risk or IARC Group 2B classification. It delivers comparable foam-boosting and viscosity-building performance in shampoos and body washes, and most formulators reformulating away from DEA-based ingredients switch directly to Cocamide MIPA with minimal adjustments to the formula.