Private label cosmetics
Thoughtful personal care products developed and manufactured for your brand, from everyday essentials to focused care.
Private label cosmetics and pet care manufacturing—from formulation and sampling to filling and finished products under your brand.
Whether you are launching a first product or extending an established range, we help shape a clear, production-ready solution aligned with your market, target price and quantities.
Thoughtful personal care products developed and manufactured for your brand, from everyday essentials to focused care.
Cosmetic grooming and care products created for modern pet brands—practical formats, considered formulas and reliable production.
Choose a suitable existing base for a faster launch or work with us on a custom formulation designed around your brief.
We coordinate manufacturing, filling and the practical details needed to turn an approved sample into a market-ready product.
A selection of formats we can develop and manufacture under your label. The final formulation, packaging and design are tailored to your project.






















Every project is different. Our process keeps decisions practical, timelines visible and development focused on a product that can be manufactured consistently.
Product type, target customer, market, quantities, claims and budget.
We define the route, prepare samples and refine the selected formula.
Formula, packaging and commercial details are confirmed before production.
Manufacturing, filling and preparation of your finished private label products.
Our cosmetic products are manufactured in accordance with Good Manufacturing Practice requirements under Regulation (EC) No 1223/2009. Our manufacturing and quality procedures follow the principles and guidelines of ISO 22716 for cosmetic production, control, storage and shipment.
We support our private label partners with product documentation, batch traceability, label compliance and the coordination of testing required for placing cosmetic products on the EU market.
Pet care: Regulatory requirements and permitted claims are assessed according to the formulation, intended use and target market.







Selected brands, collaborations and retail presence from our manufacturing journey.
Small enough to listen. Experienced enough to deliver.
Rainer Lab is the private label division of Rainer d.o.o., the company behind Slovenian cosmetics brand 4kidsandus. Since 2014, we have developed and manufactured cosmetic products in our own production.
Because we also build our own brand, we understand that a successful product is more than a formula. It must work commercially, communicate clearly and be realistic to manufacture.
Discover 4kidsandusMinimum quantities start from 500 units per product for selected formulations and standard packaging. The exact MOQ depends on the formula, fill volume, packaging and level of customisation.
Yes. We can work from a suitable existing base or develop a custom formula around your product brief. Development scope, testing and documentation are quoted separately.
Yes. We welcome enquiries from brands, distributors and retailers across Europe and international markets. Products are manufactured in Slovenia, European Union.
Tell us the product category, target market, desired quantity, packaging preference, target price and expected launch date. If some details are not yet decided, a short concept is enough to start.
Tell us briefly what you would like to develop. Choose Gmail or Outlook below—the enquiry will open as a ready-to-send email.

Email us directly:
info@rainerlab.comCall us+386 70 369 294Rainer d.o.o.
Prečna pot 3
8250 Brežice, Slovenia, EU
VAT number: SI72764023
Cosmetic pet care products are intended for external grooming and care. Product feasibility and permitted claims are assessed per project and target market.