Today, scientifically substantiated efficacy is one of the most important factors in building trust in a cosmetic brand. Reliable testing methods make it possible to objectively assess the impact of cosmetics on problematic skin, confirm their soothing and regenerative properties, and provide credible evidence supporting marketing claims.
In this latest overview, we take a closer look at upcoming regulatory changes and laboratory methodologies that help manufacturers demonstrate the safety and efficacy of their products.
New Rules for Detergents – What Should Manufacturers Know?
The European Union is introducing new legislation for detergents aimed at improving product safety, increasing transparency for consumers and reducing environmental impact.
One of the key measures is the implementation of the Digital Product Passport (DPP), which will be accessible via a QR code placed on product packaging. After scanning the code, consumers will gain access to detailed information regarding:
- product composition,
- instructions for use,
- safety information,
- compliance with applicable regulations,
- environmental impact.
The new regulations also support the sale of detergents in refill systems, encouraging the reuse of packaging and contributing to the reduction of plastic waste.
Additionally, specific requirements have been introduced for detergents containing microorganisms. These products will need to comply with strict safety and quality standards.
In practice, these changes mean less information printed on physical labels and greater availability of detailed product data in digital form, allowing consumers to make more informed purchasing decisions.
Colourants in Cosmetics – Why Their Identification Matters
Colourants are responsible for the appearance of many cosmetic products, including lipsticks, eyeshadows, foundations and nail polishes. Their use within the European Union is regulated by Regulation (EC) No 1223/2009, which specifies which substances may be used and under what conditions.
Each authorised colourant is assigned an individual CI (Colour Index) number, for example:
- CI 77491 – Iron Oxides,
- CI 77891 – Titanium Dioxide.
Not all colourants may be used in every product category. Some are permitted only in products intended for skin application, while others can also be used in formulations designed for the eye or lip area.
These restrictions result from comprehensive safety assessments and are intended to protect consumer health. Understanding CI labelling also helps consumers better understand product composition and make more informed choices.
Comedogenic and Acnegenic Potential – How to Confirm Product Suitability for Problematic Skin
Products intended for oily, combination and acne-prone skin require particularly careful efficacy and safety assessment.
Comedogenic and acnegenic potential testing allows manufacturers to determine whether a product:
- does not promote the formation of comedones,
- does not increase the occurrence of microcysts,
- does not exacerbate acne lesions such as papules and pustules.
The assessment is conducted by experts through comparison of skin condition before and after regular product use.
The results provide strong support for claims such as:
- “non-comedogenic”,
- “non-acnegenic”.
For manufacturers, these studies also represent an effective way to strengthen product credibility and differentiate products within the highly competitive dermocosmetics market.
Anti-Acne Effect – A Comprehensive Approach to Demonstrating Efficacy
The efficacy of products intended for problematic skin should be assessed through multiple mechanisms involved in acne development.
The comprehensive Anti-Acne Effect package includes:
- sebum secretion assessment,
- porphyrin analysis associated with the activity of Cutibacterium acnes,
- expert evaluation of acne severity according to recognised dermatological scales.
This multidimensional approach provides measurable and objective evidence of product performance and generates reliable data supporting marketing claims.
The study results can significantly enhance product communication and strengthen consumer confidence in products designed for acne-prone skin.
SLS Test – Assessing Soothing and Regenerative Properties
As demand for products dedicated to sensitive skin continues to grow, there is increasing interest in methods capable of demonstrating soothing and regenerative effects.
One of the most widely recognised approaches is the SLS (Sodium Lauryl Sulfate) test, which is used to evaluate skin tolerance and the restoration of the skin barrier.
The study assesses a product’s ability to:
- reduce redness,
- soothe irritation,
- support regenerative processes,
- restore the hydrolipid barrier.
The evaluation is based on instrumental measurements, including:
- erythema assessment,
- TEWL (transepidermal water loss) measurements.
These instrumental methods provide objective and quantitative data that can substantiate claims related to soothing, regenerative and barrier-supporting properties.
Laboratory Testing as the Foundation of Credible Cosmetic Claims
Growing consumer expectations and an evolving regulatory landscape mean that cosmetic efficacy and safety must increasingly be supported by objective and measurable evidence. Laboratory testing provides the data needed not only to substantiate marketing claims, but also to build long-term trust in a brand.
In the coming years, competitive advantage will belong to manufacturers that successfully combine innovative formulations with reliable scientific evidence and transparent, fact-based communication.