Family-run skincare manufacturer · Made in EU · 30 years experience Family-run · Made in EU · 30 Years experience
Formulation and R&D

Custom Cosmetic Formulation in Our EU Laboratory

Our formulation team develops skincare, body care, hair care and hygiene products in the same Karlovo facility where they are later manufactured. That keeps laboratory decisions connected to production reality from the first sample onward.

Tsilkov Cosmetics laboratory team developing a cosmetic formula sample
From idea to manufacturable formula

Formulation starts with the product you need to sell, not with a generic base

A useful formulation brief is more than a list of trendy ingredients. We look at the target consumer, texture, sensorial profile, packaging, claims direction, fragrance, target price, destination market and production quantity together. The formula has to perform for the consumer and behave predictably when it moves from a laboratory beaker to a manufacturing vessel.

Because our laboratory and production teams work within one facility, scale-up considerations can be addressed during development. This reduces the risk of approving a beautiful laboratory sample that becomes difficult to manufacture consistently later.

Capabilities

Four common ways clients start formulation with us

New formulation

Develop a product from scratch around your brief, target texture, ingredient direction, consumer and price position.

Reformulation

Adapt an existing formula because of ingredient availability, cost, texture, claims, regulation or production requirements.

Reference-product matching

Use a benchmark product or INCI as a technical and sensory reference while creating a formula suitable for your own project.

Formula transfer

Bring an existing formula and documentation so we can review the manufacturing route, raw materials and scale-up requirements.

Texture and sensory refinement

Adjust absorption, slip, richness, viscosity, fragrance, appearance and after-feel through structured sample rounds.

Production-ready development

Formulation choices are made with the equipment, process order, filling format and intended commercial scale in mind.

Process

Our custom formulation process

  1. Product brief

    We define product type, consumer, texture, ingredient direction, claims, fragrance, packaging, quantity and target market.

  2. Technical direction

    The formulator chooses the initial system, key materials and process route that can realistically meet the brief.

  3. Laboratory samples

    We prepare the first version and compare it with your brief or reference product where one exists.

  4. Refinement

    Feedback is translated into targeted changes rather than restarting the entire formula after every sample round.

  5. Testing and approval

    The approved formula moves into the agreed stability, compatibility, challenge, safety and regulatory work.

  6. Scale-up

    The laboratory process is translated into manufacturing instructions and verified for commercial production.

Technical detail

What buyers usually need to know before the project starts

What makes a strong development brief

The more commercial and technical context we have at the beginning, the more useful the first sample can be.

  • Product type and target consumer
  • Reference products or sensorial direction
  • Ingredients that must be included or avoided
  • Fragrance and appearance preferences
  • Target claims and positioning
  • Packaging type and fill size
  • Target cost or retail positioning
  • Destination market and launch timing

Testing after formula approval

The final testing plan depends on product type, packaging, preservation system, claims and destination market. We support stability, packaging compatibility and challenge testing, and coordinate specialised or accredited external testing where required.

  • Stability testing
  • Packaging compatibility
  • Challenge testing / preservation efficacy where applicable
  • Microbiological and specialised testing as required
  • Safety-assessment documentation support
  • Claim-support testing where the project requires it

Reference matching is development, not photocopying

A reference product can define the target texture, appearance, sensorial profile or functional direction. The resulting formulation still has to work with available raw materials, your selected packaging, current regulatory requirements and our manufacturing process. A close match is therefore a technical development project, not a promise of molecular identity.

Formula ownership is agreed in writing

Ownership, exclusivity, development rights and permitted use of a formula depend on the agreement for the specific project. We recommend confirming these points before paid development begins rather than relying on assumptions.

Built for production 700+ formulas developed

Experience matters most when a formula has to behave repeatedly

Our formulation experience spans face care, body care, hair care and hygiene. The practical value is not the number itself. It is the accumulated understanding of emulsions, gels, oils, balms, surfactant systems, preservation, packaging interaction and production behaviour that helps us solve the next problem faster.

Talk to the owners
Good to know

Custom Formulation FAQs

Can you develop a cosmetic formula from scratch?

Yes. We can develop a new formula around your product brief, target texture, ingredients, packaging, market and commercial positioning.

Can you reformulate an existing product?

Yes. Reformulation may be used to address ingredient availability, cost, regulation, texture, stability, claims or manufacturing requirements.

Can you work from an INCI list or reference product?

Yes. We can use an INCI list or reference product as a development benchmark and work toward a close technical and sensory match.

How many sample rounds are included?

The number of sample rounds depends on the development agreement and complexity of the brief. We define the commercial scope before the project starts.

Do you perform stability and challenge testing?

We support stability, compatibility and challenge testing, with specialised or accredited external testing coordinated when the product or claim requires it.

Who owns the final formula?

Formula ownership and exclusivity depend on the written development agreement. They should be agreed explicitly for each project.

Can the formula be manufactured at another factory?

That depends on the formula rights and agreement. Our development process is designed around production at Tsilkov, but contractual rights should always be checked for the specific project.

Tell us what you want to make

Share the product, quantity, packaging idea or manufacturing challenge. One of the owners will reply personally.