
FLOCARE SK 425
Ammonium Polyacryloyldimethyl Taurate – Electrolyte-Resistant Cosmetic Thickener
FLOCARE™ SK 425 by SNF is an electrolyte-resistant cosmetic thickener and rheology modifier based on Ammonium Polyacryloyldimethyl Taurate.
Supplied as a white powder, this crosslinked polymer is designed to provide thickening, texture enhancement, and stabilization in skincare and facial cleansing formulations.
FLOCARE SK 425 is particularly suitable for crystal-clear aqueous gels and electrolyte-containing formulations, combining viscosity control with excellent transparency.
Its easy dispersion, foam stabilization, and pleasant sensory properties make it a versatile ingredient for modern skincare products.


FLOCARE SK 425 BY SNF – ELECTROLYTE-RESISTANT COSMETIC THICKENER
FLOCARE™ SK 425, manufactured by SNF, is a crosslinked polymer used as a cosmetic thickener, texturizing agent, and rheology modifier in skincare and facial cleansing formulations.
Its INCI name is Ammonium Polyacryloyldimethyl Taurate.
FLOCARE SK 425 is particularly recommended for cosmetic formulations requiring high clarity and viscosity stability in the presence of electrolytes.
Unlike conventional thickening systems that may lose viscosity when exposed to salts and other ionic ingredients, FLOCARE SK 425 is designed to maintain effective rheological performance in compatible electrolyte-containing formulations.
FLOCARE SK 425 – KEY BENEFITS
1. EXCELLENT ELECTROLYTE RESISTANCE
One of the principal advantages of FLOCARE SK 425 Ammonium Polyacryloyldimethyl Taurate is its resistance to electrolytes.
The polymer is particularly suitable for cosmetic formulations containing ionic ingredients that may affect the viscosity of conventional thickening systems.
SNF technical evaluations demonstrate its performance in formulations containing selected ingredients such as:
-
Sodium PCA
-
Lactic acid
-
Alpha-hydroxy acids (AHAs)
-
Seawater-derived cosmetic ingredients
For applications requiring both transparency and electrolyte resistance, SNF recommends evaluating FLOCARE SK 425 at a concentration of approximately 2.5%.
2. CRYSTAL-CLEAR COSMETIC FORMULATIONS
FLOCARE SK 425 is designed for transparent cosmetic systems.
According to SNF technical data, a 1% polymer preparation provides greater than 90% clarity at 420 nm.
This makes it particularly useful for developing:
-
Transparent skincare gels
-
Facial serums
-
Refreshing aqueous gels
-
Lightweight cosmetic gel formulations
Its combination of clarity and electrolyte resistance supports the development of visually appealing cosmetic products.
3. VISCOSITY AND RHEOLOGY CONTROL
As a cosmetic rheology modifier, FLOCARE SK 425 Ammonium Polyacryloyldimethyl Taurate helps formulators adjust the viscosity and consistency of aqueous products.
Its moderate viscosity profile makes it suitable for formulations requiring a balance between texture, spreadability, and application comfort.
The recommended usage concentration is 1–3%, depending on formulation requirements.
4. EASY DISPERSION AND FORMULATION FLEXIBILITY
FLOCARE SK 425 is supplied as a white powder designed for easy dispersion in compatible cosmetic systems.
Its rheology-modifying properties allow formulators to develop a range of cosmetic textures while maintaining desirable product clarity.
Processing conditions and incorporation methods should be selected according to the intended formulation.
5. FOAM STABILIZATION
FLOCARE SK 425 can contribute to foam stabilization in suitable facial cleansing formulations.
This characteristic makes the polymer relevant for cosmetic cleansing products where foam properties and viscosity control are important.
Its compatibility with the complete surfactant system should be confirmed through formulation testing.
6. SOFT AND NON-STICKY SKIN FEEL
FLOCARE SK 425 contributes to the sensory characteristics of skincare formulations.
In SNF's reference gel formulation, the polymer helps provide:
-
Improved consistency
-
Pleasant spreadability
-
A cushioned application feel
-
Soft skin feel
-
A non-tacky afterfeel
These characteristics make FLOCARE SK 425 particularly relevant for lightweight skincare gels and facial care formulations.
FLOCARE SK 425 – TECHNICAL SPECIFICATIONS
Manufacturer: SNF
Product Name: FLOCARE™ SK 425
INCI Name: Ammonium Polyacryloyldimethyl Taurate
CAS Number: 121601-24-9
Product Type: Cosmetic Thickener / Rheology Modifier
Chemical Class: Crosslinked Polymer
Physical Form: Powder
Appearance: White
Total Solid Content: 92–100%
Brookfield Viscosity (1% Solution, 20 rpm): 6,000–14,000 cP
pH (1% Solution): 4–6
Gel Clarity (1% Solution, 420 nm): >90%
Recommended Usage Concentration: 1–3%
Electrolyte Resistance: Yes
Shelf Life: 24 Months
Packaging: 10 kg Bags
Technical specifications are based on SNF product documentation. Actual formulation performance depends on ingredient compatibility, concentration, and processing conditions.

FLOCARE SK 425 – COSMETIC APPLICATIONS
FACIAL SERUMS AND CLEAR GELS
FLOCARE SK 425 is particularly suitable for transparent aqueous skincare products requiring viscosity control and electrolyte resistance.
Typical applications include:
-
Facial serums
-
Crystal-clear skincare gels
-
Refreshing facial gels
-
Lightweight moisturizing gels
Its rheological characteristics support the development of products with controlled consistency and pleasant sensory properties.
MOISTURIZING AND SKINCARE FORMULATIONS
FLOCARE SK 425 may also be evaluated in compatible moisturizing and skincare products, including:
-
Moisturizing creams
-
After-sun skincare products
-
Cica creams
-
Daily facial care formulations
-
Lightweight gel-cream products
Its electrolyte resistance can be particularly relevant when formulating with selected ionic moisturizing ingredients.
FACIAL CLEANSING PRODUCTS
FLOCARE SK 425 Electrolyte-Resistant Cosmetic Thickener can be used in suitable facial cleansing formulations requiring viscosity adjustment and foam stabilization. Its performance should be evaluated according to the surfactant system, electrolyte concentration, and finished-product requirements.
FLOCARE SK 425 – FORMULATION GUIDELINES
RECOMMENDED USAGE CONCENTRATION
1–3%
The appropriate concentration depends on the desired viscosity, clarity, electrolyte content, and finished-product characteristics.
ELECTROLYTE-CONTAINING FORMULATIONS
SNF technical evaluations identify FLOCARE SK 425 Electrolyte-Resistant Cosmetic Thickener as a suitable polymer for transparent formulations containing selected electrolytes.
For applications requiring maximum clarity and electrolyte resistance, the manufacturer recommends evaluating the product at approximately 2.5%.
Final viscosity, transparency, and stability should be confirmed through formulation testing.
PROCESSING CONSIDERATIONS
-
Supplied as an easy-to-disperse powder
-
Suitable for aqueous cosmetic formulations
-
Provides viscosity and texture adjustment
-
Supports transparent gel development
-
Demonstrates resistance to selected electrolytes
-
Requires appropriate dispersion and mixing conditions
-
Finished-product stability should be verified before commercial production
FLOCARE SK 425 – SNF FORMULATION EXAMPLE
CRYSTAL-CLEAR PRECIOUS GELÉE (SK 012)
SNF has developed a reference formulation demonstrating the performance of FLOCARE SK 425 in a transparent skincare gel containing electrolyte-rich ingredients.
The formulation uses 2.5% FLOCARE SK 425 together with selected moisturizing ingredients, including Sodium Hyaluronate and Sodium PCA.
The reference formulation demonstrates the following finished-product characteristics:
Appearance: Crystal-Clear Gel
pH: 5.5–5.8
Viscosity: 9,600–12,000 cP
Stability: Passed 3 months at 40°C and 1 month at 50°C.
The formulation also demonstrates desirable sensory characteristics, including improved consistency, cushioned application, and a soft, non-tacky afterfeel.
These values refer to SNF's SK 012 reference formulation and should not be interpreted as the standalone technical specifications of FLOCARE SK 425.
FLOCARE SK 425 – TRANSPORTATION AND STORAGE
Store FLOCARE SK 425 Electrolyte-Resistant Cosmetic Thickener in its original packaging under suitable dry storage conditions.
Keep packaging securely closed and protect the powder from unnecessary moisture exposure.
Shelf Life: 24 Months
Refer to the manufacturer's current Safety Data Sheet for detailed storage and handling instructions.
FLOCARE SK 425 BY SNF – SUPPLIER ACTA CHEMICALS
ACTA Chemicals supplies FLOCARE™ SK 425 by SNF, an electrolyte-resistant cosmetic thickener and rheology modifier based on Ammonium Polyacryloyldimethyl Taurate.
Manufactured by SNF, FLOCARE SK 425 is particularly relevant for cosmetic manufacturers developing crystal-clear gels, facial serums, moisturizing products, and electrolyte-containing skincare formulations.
For companies sourcing FLOCARE SK 425, Ammonium Polyacryloyldimethyl Taurate, or electrolyte-resistant cosmetic thickeners, ACTA Chemicals provides B2B raw material supply, product information, and technical documentation.
For FLOCARE SK 425 pricing, bulk orders, technical specifications, or product inquiries, please complete the contact form below.
FOR MORE INFORMATION & INQUIRIES
For more information about this product or any questions you may have, please complete the form below to get in touch with our expert team.











