Testing > Microbiology | Cosmetics & Toiletries

petri dishes microbe testing colorful spread out on surface

[poll results] How Often do you Conduct Microbiological Testing During the Product Development Process?

As you know, microbial contamination is the bane of cosmetics formulators' existence and one of the most common reasons products are recalled. So we asked last week: how often do you test for microbial contamination during PD? Here's what you said.

U Cinn Contamination Thumbnail 5

[podcast] The Bigger Issue Behind Microbial Contamination

In the case of fluctuating PET results for w/o products, it can be useful to increase the number of samples to verify the results.

Determining Preservative Efficacy in W/O Formulas, Part II: Making Microbiological Safety Assessments

Givaudan CT Branded Content 10-14-24

Givaudan CT Branded Content 10-14-24

To test such products under real-use conditions, an exaggerated cumulative clinical is proposed and demonstrated here in a study assessing the mildness of a care cleansing formula. In today's reality, cleansing products must be developed to overcome the potential adverse effects caused by frequent and repeated use.

Exaggerated Wash Test to Clinically Validate ‘Care Cleansing’ Mildness

To test such products under real-use conditions, an exaggerated cumulative clinical is proposed and demonstrated here in a study assessing the mildness of a care cleansing formula.

Genemarkers Ct2206 Lead

Assessing the Effects of Blue Light on the Skin in New Validated Method

Studies have shown blue light can have damaging effects on the skin. Genemarkers has developed a reproducible in vitro method for measuring blue light effects. Learn how Genemarkers’ blue light testing can aid product development.

To assess the potential of citizen science for skin microbiome research, the work described here used a consumer test kit deployed in a pilot study of 59 participants to collect data. The results of a case study and more are outlined.

Citizen Science for Skin Microbiome Research—A 'Microbiome-friendly' Case Study

To assess the potential of citizen science for skin microbiome research, the work described here used a consumer test kit deployed in a pilot study of 59 participants to collect data. The results of a case study and more are outlined.

Young woman with acne.

Topical Antioxidant and Silymarin Serum Improves Facial Acne

After four weeks of product use, subjects showed statistically significant improvement in skin clarity, skin tone evenness and PIH/PIE which continued to improve through week 12.

Sun Pharmaceutical’s WINLEVI (clascoterone) cream 1% for the topical treatment of acne vulgaris showed favorable safety and efficacy data.

Phase 3 Data for WINLEVI Supports Efficacy for Acne

“Before WINLEVI became available, there was no topical medication available that was able to reduce sebum production, which is a major cause of acne.”

Skin Proud Launches #skinsistency Campaign

Skin Proud conducted its first-ever regimen user trial that saw 30 women and men test the brand’s best-selling Sorbet Skin and Detox Tonic within a routine over a two week period.

Albert Dashi, Ph.D., CSO and co-founder of Sequential Skin and Petronille Houdart, PharmD and skin care director of the Sequential lab in Singapore.

Sequential Skin Debuts Sequential Bio Testing Solution

Sequential Bio is an in-vivo microbiome testing solution to better understand the effects of ingredients on the body's microbiome in real-world conditions.

Eurofins Ct2203 Lead

Reduction of skin stress by CBD products: Aiming high above the competition

The use of cannabinoid products is growing in popularity. Formulate with cannabinoids confidently with effective technology development strategy from Eurofins – download a free brochure on CBD testing for safety and compliance.

In StratiCELL’s MicroBIOS Platform, the company can now colonize reconstructed epidermis with an IA1 phylotype strain of C. acnes.

StratiCELL Expands MicroBIOS Platform to Test C. acnes

In StratiCELL’s MicroBIOS Platform, the company can now colonize reconstructed epidermis with an IA1 phylotype strain of C. acnes that will elucidate interactions between the skin and its flora.

Ct2201 Doelken 850x425

Stress and Psoriasis: How TCM Herbs Can 'Cool' Inflamed Skin

This study explores how TCM can be leveraged in skin products to holistically improve conditions such as psoriasis. In particular, properties of honeysuckle, Rehmannia glutinosa and rhubarb are described and tested here in vivo.