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Related Concept Videos

Reticular Dermis01:15

Reticular Dermis

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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
Underlying the papillary layer is the much thicker reticular layer, composed of dense, irregular connective...
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Pigmentation01:19

Pigmentation

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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...
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Clinical Applications of Epidermal Stem Cells01:19

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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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Renewal of Skin Epidermal Stem Cells01:12

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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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Role of Skin in Vitamin D Synthesis01:23

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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.
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Tissue Renewal without Stem Cells01:23

Tissue Renewal without Stem Cells

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After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
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TAPE: A Biodegradable Hemostatic Glue Inspired by a Ubiquitous Compound in Plants for Surgical Application
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Tannin: An Insight into its Cosmeceutical Properties and Uses.

Rosaria Ciriminna1, Giovanna Li Petri1, Giuseppe Angellotti1

  • 1Istituto per lo Studio dei Materiali Nanostrutturati CNR via U. La Malfa 153 Palermo 90146 Italy.

Global Challenges (Hoboken, NJ)
|August 27, 2025
PubMed
Summary

Tannins are emerging as natural cosmeceutical ingredients for skin and hair care. This study explores their potential in products like hair dyes, offering a green alternative to synthetic chemicals.

Keywords:
hair relaxernatural cosmeticstaninoplastiatannic acidtannin

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Area of Science:

  • Cosmetic Science
  • Natural Product Chemistry

Background:

  • Limited scholarly research exists on the cosmetic applications of tannins.
  • Tannins are natural polyphenolic compounds with potential health benefits.

Purpose of the Study:

  • To identify emerging uses of tannins as cosmeceutical ingredients.
  • To explore the green chemistry, health, and economic perspectives of tannin use in cosmetics.
  • To accelerate the adoption of tannins in widely used cosmetic products.

Main Methods:

  • Literature review and analysis of emerging trends in cosmeceutical ingredients.
  • Exploration of tannin properties relevant to skin and hair care applications.
  • Assessment of green chemistry principles and economic viability for tannin-based cosmetics.

Main Results:

  • Tannins show promise as cosmeceutical ingredients in skin and hair care.
  • Potential applications identified in hair dyes and hair relaxers.
  • Tannins offer a natural alternative to potentially harmful synthetic chemicals.

Conclusions:

  • Tannins represent a valuable class of natural products for the cosmetic industry.
  • Their adoption can lead to safer and healthier cosmetic products.
  • Further research and development can facilitate the widespread use of tannins in cosmetics.