Related Experiment Video
Updated: Jul 4, 2025

09:15
Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles
Published on: November 10, 2017
14.6K
Effect of Race on Lower Lip Hydration
Hemali B Gunt1, Stanley B Levy2
1Dr. Gunt is with Burt's Bees in Durham, North Carolina.
The Journal of Clinical and Aesthetic Dermatology
|February 1, 2024
Summary
Racial differences in lip hydration were analyzed, revealing distinct variations among ethnic groups. Black individuals exhibited lower lip hydration compared to Caucasians and Hispanics, suggesting race impacts lip moisture levels.
Area of Science:
- Dermatology
- Biophysics
Background:
- Lip hydration is a critical biophysical property influencing lip health and appearance.
- Limited research exists on racial variations in lip hydration compared to skin hydration.
- Understanding these differences is important for cosmetic and dermatological applications.
Purpose of the Study:
- To investigate potential racial differences in lip hydration values.
- To analyze baseline lip hydration data across different racial groups.
Main Methods:
- Retrospective analysis of lip hydration data from sixteen clinical studies.
- Corneometer® CM 825 measurements were used to assess lip hydration.
- Analysis of Variance (ANOVA) was employed to compare data from the three largest subject groups (Black, Caucasian, Hispanic).
Main Results:
- Lip hydration values, in increasing order, were observed as: Black < Caucasian < Hispanic.
- Asian-American and Native-American groups showed hydration levels comparable to the Hispanic group.
- The observed trend aligns with existing literature on racial differences in skin hydration.
Conclusions:
- This study suggests that racial differences in lip hydration exist.
- These findings contribute novel insights into lip biophysical properties across diverse populations.
- Further research is warranted to explore the underlying mechanisms and implications of these hydration variations.
Related Concept Videos
Salivary Glands and Saliva
687
The salivary glands, of which there are three pairs known as the parotid, submandibular, and sublingual glands, play a crucial role in maintaining oral health and initiating the digestive process. Positioned near the ears, beneath the masseter muscle, the parotid glands secrete saliva into the oral cavity through the parotid duct of Stensen. Meanwhile, the submandibular glands, located on the floor of the mouth, secrete saliva through channels named submandibular ducts. The sublingual glands,...
687
Regulation of Water Intake
506
Osmolality refers to the number of solute particles per kilogram of solvent in a solution. Plasma osmolality specifically indicates the total number of solute particles per kilogram of water in blood plasma. This value reflects the body's hydration status and is tightly regulated through mechanisms controlling water intake and output. While water consumption is a conscious decision, the body has intrinsic regulatory systems to maintain fluid balance. Dehydration, a state of water deficit...
506
Pigmentation
2.4K
The color of the skin is influenced by a number of pigments, including melanin, carotene, and hemoglobin. Recall that melanin is produced by cells called melanocytes, which are found scattered throughout the stratum basale of the epidermis. The melanin is transferred to the keratinocytes via melanosomes.
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...
2.4K

