Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Skin Cancer01:30

Skin Cancer

Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Pigmentation01:19

Pigmentation

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...
Role of Skin in Vitamin D Synthesis01:23

Role of Skin in Vitamin D Synthesis

The skin plays a crucial role in the synthesis of vitamin D, a vital nutrient for various physiological processes in the body. Vitamin D is unique because it can be synthesized in the skin through a series of chemical reactions triggered by exposure to ultraviolet B (UVB) radiation from sunlight.
The solar UV B rays (290-315 nm) are absorbed by the skin, and 7-dehydrocholesterol (provitamin D3) photolyzes it to previtamin D3, which undergoes a rapid transformation to vitamin D3(cholecalciferol).
Hot Weather Concreting01:20

Hot Weather Concreting

Concreting at elevated temperatures accelerates the hydration process, leading to quicker setting but potentially reducing the long-term strength of the concrete structure. Additionally, low air humidity fosters rapid moisture loss from the concrete, resulting in reduced workability, pronounced plastic shrinkage, and a higher likelihood of crazing.
Mitigating the heat increase in concrete can be economically achieved by shading aggregate stockpiles to prevent heating from solar radiation,...
Design Example: Managing Concrete Workability01:14

Design Example: Managing Concrete Workability

This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.
To address...
Radiation: Applications01:17

Radiation: Applications

The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[Improved patient safety through a clinical decision support system in laboratory medicine].

Der Internist·2020
Same author

[Follicular penetration of nanocarriers is an important penetration pathway for topically applied drugs].

Der Hautarzt; Zeitschrift fur Dermatologie, Venerologie, und verwandte Gebiete·2019
Same author

Recurrent ischaemic cerebrovascular events as presenting manifestations of myeloproliferative neoplasms.

European journal of neurology·2019
Same author

TDM-controlled ring resonator arrays for fast, fixed-wavelength optical biosensing.

Optics express·2018
Same author

Whole-heart 4D flow cardiac magnetic resonance in healthy dogs.

Schweizer Archiv fur Tierheilkunde·2018
Same author

Sublingual immunotherapy provides long-term relief in allergic rhinitis and reduces the risk of asthma: A retrospective, real-world database analysis.

Allergy·2017

Related Experiment Video

Updated: Jul 18, 2026

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model
12:37

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model

Published on: September 7, 2013

Sunscreen application at the beach.

J Lademann1, S Schanzer, H Richter

  • 1Centre for Experimental and Applied Cutaneous Physiology (CCP), Department of Dermatology, Charité University Hospital, Berlin, Germany. juergen.lademann@charite.de

Journal of Cosmetic Dermatology
|December 7, 2006
PubMed
Summary

Beachgoers apply significantly less sunscreen than the standard amount, with most using 10% or less of the recommended dose. This inadequate sunscreen application leaves skin poorly protected from UV radiation.

More Related Videos

The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight
10:27

The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight

Published on: October 11, 2016

Related Experiment Videos

Last Updated: Jul 18, 2026

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model
12:37

Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model

Published on: September 7, 2013

The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight
10:27

The Evolution of Silica Nanoparticle-polyester Coatings on Surfaces Exposed to Sunlight

Published on: October 11, 2016

Area of Science:

  • Dermatology
  • Photoprotection
  • Public Health

Background:

  • Sunscreen's Sun Protection Factor (SPF) is determined by a standard application amount of 2 mg/cm², as defined by the European Cosmetic Toiletry and Perfumery Association (COLIPA).
  • Real-world sunscreen application is often less than the standardized amount, potentially compromising UV protection.

Purpose of the Study:

  • To quantify the actual amount of sunscreen applied by individuals at a beach.
  • To compare real-life sunscreen application with the established COLIPA standard.

Main Methods:

  • Randomly selected beachgoers, unaware of the study, were tested for sunscreen adequacy.
  • Sunscreen amounts were quantitatively measured using tape stripping on various body sites.
  • Fluorescent dye-tagged sunscreen was used in a laboratory setting to visualize application distribution via UVA photography.

Main Results:

  • Sixty volunteers showed inadequate sunscreen coverage across all body sites.
  • Most volunteers applied 10% or less of the COLIPA standard amount.
  • Ears and tops of feet were least protected; the back was poorly protected when self-applied.

Conclusions:

  • Real-world sunscreen application at the beach is significantly lower than recommended standards.
  • Inadequate sunscreen use results in poor skin protection against UV exposure.
  • Consistent and adequate sunscreen application is crucial for effective photoprotection.