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Glossary Stratum Corneum

outermost skin layer composed of dead, keratinized cells

The Stratum Corneum, also known as the Horny Layer, is the outermost layer of the epidermis, consisting of dead, flattened skin cells that are rich in keratin. This layer acts as a primary barrier to protect underlying tissues from infection, dehydration, and mechanical stress, playing a crucial role in maintaining skin hydration and overall health.

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Research

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research LC/MS analysis of stratum corneum lipids: ceramide profiling and discovery

211 citations , March 2011 in “Journal of Lipid Research”

This study reports a novel LC/MS method that separates and analyzes all known ceramide subclasses in human stratum corneum, identifying a new subclass, CER [EOdS], with minimal sample preparation.

research Development of Stratum Corneum Lipid Liposomes for Topical Drug Delivery

July 2026 in “International Journal of Drug Delivery Technology”

This research reported that liposomal systems made from pig-derived skin lipids enhanced finasteride delivery to hair follicles for treating androgenetic alopecia, showing improved drug deposition, hair length, and growth compared to conventional finasteride forms in vitro.

research In vivo penetration of bare and lipid-coated silica nanoparticles across the human stratum corneum

16 citations , August 2014 in “Colloids and surfaces. B, Biointerfaces”

This study found that hydrophobic lipid-coated silica nanoparticles penetrated deeper into human stratum corneum compared to their hydrophilic counterparts, highlighting the influence of surface polarity on skin penetration.

research Nanostructured lipid carriers (NLCs) composed of argan oil, the potential novel vehicle for caffeine delivery to stratum corneum and hair follicles

January 2022 in “DOAJ (DOAJ: Directory of Open Access Journals)”

This study found that the optimized nanostructured lipid carrier formulation effectively enabled caffeine to penetrate and accumulate in hair follicles, suggesting potential for intrafollicular delivery in treatments for hair loss.

research The stratum corneum barrier: impaired function in relation to associated lipids and proteins

7 citations , May 2024 in “Tissue Barriers”

The researchers reported that components of keratinocytes influence the formation and differentiation of the stratum corneum, the epidermis's most specialized layer.

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Community Join

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community PP405 is NOT gray market jxl069

in Technology 26 upvotes 8 months ago

PP405 is a safer alternative to JXL069 for hair loss treatment because it penetrates the skin effectively and degrades in the blood, avoiding systemic toxicity. JXL069, when forced into the body, can cause dangerous side effects like lactic acidosis due to its inability to degrade safely.

community Topical Dutasteride Experiment

1 upvotes 2 months ago

The user is experimenting with a homemade topical dutasteride formulation to reduce hair loss while minimizing systemic absorption, using MCT oil, almond oil, vitamin E, tea tree oil, and lavender oil. They are monitoring hair growth and side effects, particularly focusing on sexual health, and are open to feedback on their approach.

community Switching RU vehicle due to scalp irritation – anyone tried low-EtOH + squalane / emu oil?

in Treatment 2 upvotes 9 months ago

The user is experiencing scalp irritation from using RU58841 with a 70% ethanol and 30% propylene glycol vehicle and is considering switching to a less irritating vehicle, such as 30% ethanol with 70% squalane or emu oil. They are seeking feedback on the effectiveness and irritation levels of these alternative carriers.

community Why you can still look forward to PP405 and JXL-069

22 upvotes 2 months ago

PP405 and JXL-069 are the same compound, but users experienced no results due to flawed application methods. The topical gel formulation of PP405 is designed to target hair follicle stem cells effectively, unlike liquid solutions that fail to penetrate deeply.

community Topical fin - why are people still using alcohol carriers when liposomal is proven to be better?

7 upvotes 1 year ago

Liposomal carriers for topical finasteride offer better targeting, reduced side effects, and less irritation compared to alcohol-based solutions, but availability and cost may limit their use. Minoxidil can dissolve in liposomal carriers, enhancing delivery and stability.

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Clinics

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Hair Loss Treatments
Dr Tay Liang Kiat - Stratum Skin and Surgery (Parkway East)Singapore · SG

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