Detergent Formulation Optimization in Thailand: How to Select SLES, LABSA, AOS and SLS

Detergent manufacturers in Thailand face a practical challenge: how to reduce formulation cost without sacrificing cleaning performance, foam, viscosity or storage stability.

The lowest-priced surfactant is not necessarily the most economical option. Raw materials with different active-matter contents cannot be compared accurately by price per kilogram alone. A formulation that appears inexpensive during purchasing may become costly if it requires a higher dosage, creates unstable viscosity or causes inconsistent production batches.

Effective formulation optimization should therefore begin with the target product, market requirements and measurable performance standards—not with a fixed formula copied from another market.

YARUN supports detergent manufacturers with formulation evaluation, surfactant selection and the supply of laundry detergent ingredients, including SLES, LABSA, AOS, SLS, CAPB and CDEA.

This guide explains how SLES, LABSA, AOS and SLS can be evaluated for detergent production in Thailand.

Why Detergent Formulas Must Be Adapted to the Thai Market

A formula that works successfully in one country may not deliver the same commercial result in another.

Manufacturers supplying the Thai market should consider:

• Local expectations for cleaning, foam, fragrance and product appearance

• Economy, mainstream or premium market positioning

• Manual washing versus machine washing

• Water conditions in the intended sales area

• Warm storage and transportation environments

• Raw material availability and replenishment time

• Existing mixing, heating and filling equipment

• Packaging size and target retail price

• Local regulatory and labeling requirements

A commercially successful detergent must satisfy three conditions:

1. It performs as expected by the end user.

2. It remains stable during production, transportation and storage.

3. It meets the manufacturer’s cost and profit targets.

For this reason, formulation optimization is both a technical and commercial decision.

Start With the Finished Product Requirements

Before selecting surfactants, manufacturers should define what the finished detergent is expected to achieve.

A useful product brief should answer the following questions:

Without a clear product brief, changing surfactant ratios becomes a process of trial and error.

Comparing SLES, LABSA, AOS and SLS

SLES, LABSA, AOS and SLS are widely used anionic surfactants, but they do not perform exactly the same function.

The correct material or combination depends on the intended product, required performance, processing conditions and target cost. Buyers can review YARUN’s available detergent surfactants and raw materials while evaluating the options below.

SLES

Sodium Laureth Sulfate is commonly used in liquid cleaning formulations because it provides detergency, foam and relatively convenient processing.

Commercial SLES products are available with different active-matter contents. Concentrated paste grades and lower-active liquid grades should not be compared only by delivered price.

SLES may be useful when a manufacturer requires:

• Strong and stable foam

• Good water solubility

• Compatibility with liquid formulations

• Flexible viscosity adjustment

• A relatively straightforward production process

However, viscosity does not depend on SLES alone. Electrolytes, co-surfactants, perfume, water quality, temperature and order of addition can all affect the final result.

LABSA

Linear Alkylbenzene Sulfonic Acid is an important detergent raw material because of its detergency and potential cost efficiency.

LABSA must be neutralized correctly before it functions as the corresponding surfactant salt in the finished detergent. The neutralization process can affect:

• Final pH

• Product color

• Batch temperature

• Viscosity

• Odor

• Long-term stability

LABSA may appear commercially attractive, but an incorrect neutralization process can eliminate the expected cost advantage.

Manufacturers should establish the alkali source, addition rate, temperature controls and final pH through controlled laboratory trials.

AOS

Alpha Olefin Sulfonate is used in formulations requiring strong foam, detergency and performance under demanding washing conditions.

AOS may be considered when:

• Persistent foam is important to the target consumer

• The product must perform under varying water conditions

• The manufacturer wants to adjust the balance between foam and cleaning

• A differentiated surfactant system is required

Its practical value depends on the specific grade, active content and compatibility with the complete formulation. AOS should be evaluated as part of a surfactant system rather than treated as an automatic replacement for SLES or LABSA.

SLS

Sodium Lauryl Sulfate provides effective detergency and rapid foam generation. It is available in different physical forms and active-matter grades.

SLS may be useful in selected powder, paste or concentrated applications. Manufacturers should consider:

• Dissolution and dispersion

• Dust control for powder grades

• Available processing equipment

• Finished-product mildness requirements

• Compatibility with other ingredients

SLS and SLES are different materials. They should not be treated as interchangeable simply because both are sulfate surfactants.

Compare Surfactant Cost by Active Matter

Price per kilogram can produce a misleading raw material comparison.

A more useful starting calculation is:

Cost per kilogram of active matter = Delivered raw material price ÷ Active-matter fraction

For example:

Material B has a higher delivered price, but its calculated cost per kilogram of active matter is lower.

This calculation is only the first step. Manufacturers must also consider:

• Neutralization chemicals

• Water supplied with the raw material

• Heating and mixing requirements

• Thickener and electrolyte demand

• Preservative requirements

• Production time

• Freight and packaging efficiency

• Reworking or rejected-batch risk

The objective is not to purchase the cheapest ingredient. It is to achieve the lowest total cost for a stable product that meets the required performance standard.

Build a Surfactant System, Not a Single-Ingredient Formula

Most commercial detergents require a combination of ingredients rather than one surfactant working alone.

A complete system may include:

• A primary surfactant for detergency

• A secondary surfactant for foam or performance adjustment

• A nonionic surfactant for oily-soil removal

• Builders or chelating agents for water-condition management

• A rheology system for viscosity control

• Fragrance, color and preservation

• Functional additives supporting the intended product claim

The most appropriate combination depends on the target market segment.

Economy Detergents

The priorities are normally basic cleaning performance, cost control and reliable production.

Cost reduction should not be achieved by reducing active matter without testing. A low-active product that requires a higher consumer dosage may perform poorly and reduce repeat purchases.

Mainstream Detergents

Mainstream products usually require a balance of cleaning, foam, fragrance, appearance and price.

A blended surfactant system can give manufacturers greater flexibility than relying too heavily on one material.

Premium and Concentrated Detergents

Producing a concentrated detergent requires more than simply increasing the surfactant dosage.

Higher-active formulations may create challenges involving:

• Raw material incorporation

• Temporary viscosity peaks

• Low-temperature behavior

• Perfume solubilization

• Pourability

• Rinsing performance

• Packaging compatibility

Laboratory and pilot-production testing should be completed before commercial launch.

A Practical Formulation Optimization Process

Manufacturers should use controlled comparisons instead of changing several ingredients simultaneously.

Step 1: Record the Current Formula

Document every ingredient by:

• Trade name

• Chemical name

• Supplier

• Active matter

• Dosage

• Delivered cost

• Function

• Order of addition

This creates a reliable baseline for the optimization project.

Step 2: Calculate Total Surfactant Active Matter

Convert each surfactant dosage into its active contribution:

Active contribution = Raw material dosage × Active-matter fraction

This allows the current formula and proposed alternatives to be compared on the same basis.

Step 3: Define the Main Optimization Objective

Select one primary objective for each trial, such as:

• Reduce cost per kilogram

• Improve detergency

• Increase or control foam

• Improve viscosity consistency

• Reduce separation during storage

• Improve fragrance compatibility

• Reduce dependence on one raw material

Trying to solve every issue in one experiment makes the results difficult to interpret.

Step 4: Prepare Controlled Laboratory Samples

Keep the existing formulation as the control and change one main variable at a time.

Each sample should have a batch code and a complete production record, including:

• Water source

• Mixing speed

• Mixing time

• Batch temperature

• Order of addition

• Raw material batch numbers

These records make it possible to distinguish formulation problems from production-process problems.

Step 5: Test Performance and Stability

The test program should reflect the intended product claim and distribution environment.

Testing may include:

• Appearance and odor

• pH

• Viscosity

• Density

• Foam profile

• Cleaning performance

• Dilution behavior

• Packaging compatibility

• Storage under defined temperature conditions

• Temperature-cycle recovery

• Separation, sediment and discoloration observations

Storage conditions, test duration and acceptance limits should be established before the test begins.

A product should not be described as stable without a defined test method and observation period.

Step 6: Conduct a Pilot Batch

Laboratory success does not always translate directly to full production.

A pilot batch can identify issues involving:

• Mixing power

• Addition speed

• Localized high concentrations

• Neutralization heat

• Air incorporation

• Material transfer

• Filling performance

• Batch-to-batch viscosity variation

Commercial production should begin only after the pilot batch meets the agreed product specifications.

Formulating for Warm Storage and Distribution Conditions

Detergents sold in Thailand may experience warm warehouses, delivery vehicles and retail storage environments.

Temperature can influence:

• Viscosity

• Fragrance profile

• Product color

• Preservation

• Phase stability

• Packaging dimensions and compatibility

Manufacturers should not evaluate stability only by observing a sample at standard room temperature.

The test plan should reflect the expected distribution route, packaging format and shelf-life target. Accelerated testing can help identify formulation risks, but it should not be treated as a perfect substitute for real-time stability testing.

Retained samples from production batches should also be monitored throughout the intended shelf-life period.

How Procurement Managers Should Compare Surfactant Suppliers

A surfactant quotation is incomplete without its technical specification.

For every proposed material, procurement managers should request:

• Product specification

• Typical active matter

• Relevant pH or acidity information

• Color specification

• Relevant impurity limits

• Packaging type

• Net weight

• Batch traceability

• Certificate of Analysis

• Safety Data Sheet

• Production and delivery lead time

• Shelf life and storage requirements

• Minimum order quantity

• Country of origin

Procurement should also calculate the delivered cost of usable active matter after freight, duties, inland transportation and expected production losses.

Two suppliers may quote the same chemical name while offering materials with different concentrations, consistency, color and processing behavior.

Incoming materials should therefore be approved against a defined specification rather than only against a product name.

Manufacturers that need to compare specifications, packaging or supply options can review YARUN’s laundry detergent ingredient portfolio or request a product-specific quotation.

How YARUN Supports Detergent Manufacturers

YARUN is a formulation-led laundry care solution provider supporting detergent manufacturers, distributors and private-label buyers.

We connect raw material selection with finished-product performance, production requirements and commercial objectives.

Our support can include:

• Existing-formula evaluation

• Surfactant system selection

• Cost-per-active-matter comparison

• SLES, LABSA, AOS, SLS, CAPB and CDEA supply

• Laboratory sample development

• Finished detergent development

• Laundry pod and scent booster bead supply

• OEM and ODM project coordination

• Packaging and export supply planning

YARUN does not recommend a formula solely from a list of available raw materials.

Before proposing a solution, we evaluate the product category, target market, required performance, production equipment, cost objective and expected order volume.

Request a Formula and Cost Review

If you manufacture detergents in Thailand, send YARUN the following information:

• Product type

• Current surfactant system

• Active-matter grades

• Current or target formulation cost

• Main quality or performance problem

• Available production equipment

• Expected monthly volume

• Destination or target market

Our technical and sourcing team will evaluate whether the improvement should come from the surfactant ratio, active-matter grade, production process, additive system or purchasing structure.

Request Your Formula and Cost Review

If you are planning a new detergent product, YARUN can also help develop a suitable surfactant system based on your target market, price level and production conditions.

You can also explore YARUN’s complete range of detergent surfactants and raw materials or contact us for a specification-based quotation.

Frequently Asked Questions

Is LABSA always cheaper than SLES?

Not necessarily. LABSA may offer attractive detergency economics, but the complete calculation must include active matter, neutralization chemicals, processing requirements, finished-product performance and quality-control risk.

Can SLES be replaced directly with AOS?

A kilogram-for-kilogram replacement is not recommended. The materials may differ in active matter, foam profile, viscosity response and compatibility with other ingredients.

The replacement should be evaluated through controlled laboratory trials.

Which surfactant is best for hard water?

There is no universal answer based on one surfactant alone. Water hardness, builders, chelating agents, soil type, washing conditions and the complete surfactant system must be evaluated together.

Why does detergent viscosity change after adding fragrance?

Fragrance can alter the solubilization balance and micellar structure of a surfactant system.

The result may also be affected by electrolyte concentration, co-surfactants, temperature, fragrance composition and order of addition.

Can YARUN provide a complete detergent formula?

Yes. Formula development begins with a product brief covering the target market, product category, cost, performance, available equipment and regulatory requirements.

Laboratory testing and pilot validation are required before commercial production.

Does a higher active-matter percentage always produce a better detergent?

No. Active matter is an important calculation basis, but finished-product performance also depends on surfactant selection, builders, additives, consumer dosage, water conditions and washing method.

What information is required for a raw material quotation?

Customers should provide:

• Required material

• Specification or active-matter grade

• Packaging preference

• Destination port

• Estimated order quantity

• Purchasing schedule

If the exact grade has not been selected, YARUN can recommend suitable options based on the intended detergent formulation.

Conclusion

Detergent formulation optimization is not simply a search for cheaper SLES, LABSA, AOS or SLS.

The objective is to develop a commercially viable product that delivers consistent cleaning, appropriate foam, stable appearance and reliable production at the required cost.

By comparing active matter, testing controlled formulation variations and evaluating total production cost, Thai detergent manufacturers can make better technical and purchasing decisions.

Whether you need to optimize an existing formula, compare surfactant costs or develop a new detergent product, YARUN can provide formulation, raw material and supply-chain support for your project.

Contact YARUN to Start Your Detergent Formulation Project