Recent in In vivo (page 1 of 5)

In Vivo Study Finds Solution to Skin Firming

To work against sagging and aging, Lipotec performed a new in vivo test on Uplevity peptide.

Lipotec’s Study Offers Cold Weather and Wrinkle Treatment

The Antarcticine marine ingredient is Lipotec’s latest in vivo study, which proved its efficacy to fight cold weather and wrinkles.

Researchers Dig Deeper Into Relationship Between Bacteria and Atopic Dermatitis

Researchers from the Drexel University College of Medicine have established a clearer relationship between Staphylococci bacteria and the conditions atopic dermatitis (AD) and eczema.

Tech Edge: Optical Tools to Examine the Structure of Cosmetic Products

To monitor or anticipate what can happen in the creation of a cosmetic product when components are combined and as time passes is no trivial task especially when compounded with the psychophysical needs for the product to fit a specific concept and to spread, feel, pour and appear elegant.

A Dermatological View: Antioxidant Inhibits UV Erythema In Vivo in Humans

Described here was an in vivo model to determine antioxidative capacity of a topical skin care emulsion versus the emulsion’s vehicle on human skin that was exposed to UVR. Results suggest the test emulsion and its vehicle control inhibited the induction of erythema and reduced inflammation caused by the UV exposure.

Objective Emotional Assessment of Perceivable Wellness Effects

Pulse volume amplitude, skin conductivity, facial muscle activity and other psycho-physiological parameters can give an objective emotional assessment of consumer response to personal care products, enabling substantiation of claims for wellness effects, as demonstrated here in the setting of cosmetics and fabric care.

The Effect of Glycerol on the Water-holding Capacity of Chemically Irritated Skin*

Glycerol is one humectant commonly employed due to its high hygroscopic and hyperosmotic properties. It is used in cosmetics as a moisturizer and in pharmaceutical formulations as an active compound. Being naturally present in the skin, glycerol was quickly identified for its role in skin hydration, similar to natural moisturizing factors (NMF).

Designing Mild Personal Care Products: A Case Study

This article reviews the mechanisms underlying skin irritation and sensitization, and methods used in a case study to test cosmetic products for their potential to cause irritation. It also covers the main skin conditions that can influence susceptibility to irritation, as well as ingredients affecting the mildness of cosmetic products.

Noninvasive Techniques for Anti-cellulite Product Efficacy Evaluation

Although cellulite is not considered a disease, it is a significant cosmetic problem for many post-adolescent women. Recent studies using new diagnostic techniques such as ultrasound imaging can define the cellulite-reducing efficacy of cosmetics. However, there is still a need to standardize and objectify the testing procedures and to find parameters to measure anti-cellulite efficacy.

The Air Up There: Skin VOCs

In 2001, Japanese researchers reported that after the age of 40, some individuals develop a malodor known as “aging odor,” attributed to the presence of unsaturated C9, 2-nonenal. George Preti, PhD, a member of Monell Chemical Senses Center and an adjunct professor of dermatology at the University of Pennsylvania School of Medicine, was interested by this report and began to conduct research of his own.

Determining Korean Consumers’ Degree of Exposure to Lipstick and Face Creams

This study describes methods used in a Korean study to calculate consumer exposure to lipstick and face creams. The average amount applied daily was estimated and compared with data collected by weighing containers before and after use. The data collected was 1.8 to 1.6 times greater than the estimate, so although the survey represented real use patterns, the actual data was more accurate.