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Related Concept Videos

Clinical Applications of Epidermal Stem Cells01:19

Clinical Applications of Epidermal Stem Cells

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Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own...
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Local anesthetics (LAs) are commonly used for various applications in medical and dental procedures. Some of the common agents used are cocaine, lidocaine, and bupivacaine.
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The skin is divided into epidermis, dermis, and hypodermis, the skin's outermost, middle, and inner layers. The human epidermal layer regularly undergoes renewal, where old, dead cells are replaced by new cells. Epidermal stem cells or EpiSCs divide and differentiate to restore the lost cells. For the renewal process, some EpiSCs continuously self-renew. In contrast, few others differentiate into transit-amplifying cells, which later form prickle or spinous cells, followed by granular...
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The papillary and reticular dermis are the two layers of the dermis. They are made of connective tissue with fibers of collagen extending from one to the other, making the border between the two somewhat indistinct. The dermal papillae extending into the epidermis belong to the papillary layer, whereas the dense collagen fiber bundles below belong to the reticular layer.
Reticular Layer
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Related Experiment Video

Updated: Mar 17, 2026

A Tripeptide-Stabilized Nanoemulsion of Oleic Acid
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Topical peptides as cosmeceuticals.

Varadraj Vasant Pai1, Prasana Bhandari2, Pankaj Shukla1

  • 1Department of Dermatology, Goa Medical College, Bambolim, Goa, India.

Indian Journal of Dermatology, Venereology and Leprology
|July 26, 2016
PubMed
Summary

Cosmeceutical peptides offer diverse skin benefits by modulating physiological processes, but their effectiveness is limited by poor absorption and weak clinical evidence. Further research is needed to optimize delivery and validate efficacy for cosmetic applications.

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Area of Science:

  • Dermatology and Cosmetology
  • Biochemistry
  • Molecular Biology

Background:

  • Peptides are crucial signaling molecules in physiological processes like immunity and homeostasis.
  • Synthetic peptides are now utilized in dermatology and cosmetology for skin benefits.
  • Their evolution spans from antibiotics to advanced cosmeceuticals.

Purpose of the Study:

  • To review the roles and applications of peptides in cosmeceuticals.
  • To explore the mechanisms of action for cosmeceutical peptides.
  • To assess the advantages and disadvantages of peptide use in skincare.

Main Methods:

  • Literature review of peptide functions and applications in dermatology.
  • Analysis of peptide mechanisms as signal modulators, structural components, carriers, and neurotransmitter modulators.
  • Evaluation of transdermal delivery enhancement strategies.

Main Results:

  • Cosmeceutical peptides target extracellular matrix synthesis, pigmentation, immunity, and inflammation.
  • Delivery can be improved using enhancers, chemical modification, or encapsulation.
  • Advantages include physiological relevance, selectivity, and low immunogenicity.

Conclusions:

  • Peptides offer significant potential in cosmeceuticals due to their diverse skin functions.
  • Challenges include weak clinical evidence, poor absorption, and high cost.
  • Optimizing delivery and validating efficacy are key for future development.