Dermocosmetic patches are not a recent invention. More than 3,000 years ago, Chinese and Egyptian cultures were already applying pharmaceutical preparations to the skin for therapeutic purposes. What is recent is the sophistication of the format: today, that same transdermal delivery logic is applied to cosmetic actives with technical precision and clinical evidence.

The growth of the dermocosmetic segment represents a concrete opportunity for pharmaceutical companies looking to diversify their portfolio by leveraging already validated transdermal development platforms. Unlike medicated patches, which require full regulatory approval, dermocosmeics offer a faster path to market, lower initial investment, and high differentiation potential.

What Dermocosmetic Patches Are Used For and Their Advantages Over Other Formats

The most common application areas are the neck, neckline, cheekbones, and forehead. The format enables the delivery of vitamins, peptides, and minerals in sessions of up to thirty minutes, with a superior delivery efficacy compared to conventional creams and serums.

The reasons behind this superior efficacy are technical:

• The occlusion created by the patch promotes moisture retention and increases active permeation.
• Matrix or hydrogel formulations extend the action of active components in a controlled manner.
• The format reduces air exposure and oxidation, improving the stability of sensitive ingredients such as retinol or vitamin C.
• Local and controlled delivery minimizes skin irritation compared to freely applied formulations.

For a pharmaceutical development team, these advantages are not just marketing arguments. They are technical parameters that can be designed, optimized, and validated using the same tools applied in medicated patch development.

Types of Dermocosmetic Patches: Technical Differences and Development Considerations

Hydrogel patches

Thin, transparent sheets made from a water-based gel matrix with polymers. Their primary function is moisturizing and soothing. They are ideal for hydrophilic high-molecular-weight actives such as hyaluronic acid, which acts simultaneously on the epidermis and dermis by improving the barrier function and facilitating the penetration of other actives.

Paper or tissue patches

Paper or tissue sheets impregnated with actives. Their versatility is high: they can be formulated to moisturize, soothe, or treat specific conditions such as acne. The main technical challenge is achieving a homogeneous distribution of the active in the substrate and ensuring consistent release throughout the usage period.

Occlusive patches

Devices that hermetically seal the skin to create a protective barrier and maximize active penetration in a moisture-controlled environment. These are the most complex from a formulation standpoint and require the greatest rigor in patch-skin interface design to avoid maceration or adverse reactions.

How the Skin Functions as a Delivery Vehicle: Technical Basis for the Formulator

Understanding skin structure is the starting point for any well-designed dermocosmetic development. The skin is organized in three main layers: epidermis, dermis, and hypodermis. The first two determine patch efficacy.

The epidermis is up to 2 mm thick and divided into five strata. The stratum corneum, the outermost layer, is composed mainly of dead cells rich in keratin surrounded by an intercellular matrix of lipids and fatty acids. To facilitate active penetration through this barrier, lipophilic media are preferable.

The dermis, between 1.5 and 4 mm thick, contains collagen and elastin fibers, blood vessels, nerve endings, and sebaceous glands. Its high water content makes it a natural target for hydrophilic actives.

A key point for any formulator: since skin is a dynamic organ with its own metabolic processes, most cosmetic effects achieved — improved hydration, reduced expression lines, better texture — are limited in duration even with high-penetration actives. This means the usage regimen design (daily, weekly, or monthly frequency) is part of product development, not just marketing strategy.

Most Commonly Used Actives and Their Behavior in Skin Structure

Active selection and its vehicle determine which skin layer it will act on and with what release profile. Three examples with well-differentiated technical behaviors:

• Hyaluronic acid: acts on both epidermis and dermis. Moisturizes the skin and facilitates the penetration of other actives through the cutaneous barrier. Compatible with aqueous hydrogel formulations.
• Vegetable oils (rosehip, shea): located in the epidermis, where they prevent transepidermal water loss and deliver nutrients. Require formulation in lipophilic media.
• Niacinamide (vitamin B3): stimulates ceramide production in the dermis and improves barrier function. Its formulation versatility makes it compatible with multiple patch systems.

The dermocosmetic segment is expanding and demand for formats more effective than conventional creams continues to grow. For companies with transdermal development capabilities, it is a market entry point with lower regulatory barriers and high differentiation potential.

If your company is evaluating an opportunity in the dermocosmetic segment, our team can help you assess technical feasibility from the formulation stage. Reach out at info@amarintech.com.ar.

Sources

Pastore, M. N., Kalia, Y. N., Horstmann, M., & Roberts, M. S. (2015). Transdermal patches: history, development and pharmacology. British Journal Of Pharmacology, 172(9), 2179-2209. https://doi.org/10.1111/bph.13059

What’s driving increased skin care patch usage? GCI Magazine, October 2023. https://gcimagazine.texterity.com/gcimagazine/october_2023/MobilePagedArticle.action?articleId=1918338

Structure and Function of the Skin. In: Marks J.G., Miller J.J. (Eds.), Lookingbill and Marks’ Principles of Dermatology (6th ed.). Elsevier, 2019. https://doi.org/10.1016/B978-0-323-43040-1.00002-6

Dermis – structure, location, diagram, anatomy, function. https://anatomy.co.uk/dermis/