--- title: "Skin Absorption Studies" description: "Measure ingredient release, skin uptake and distribution." image: "https://cosmetic-labs.com/wp-content/uploads/penetration-studies-service-1200x1200-1.webp" --- # Skin Absorption Studies > Measure ingredient release, skin uptake and distribution. Source: https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies Created: 2025-02-18T09:00:58+00:00 Modified: 2026-10-25T09:05:38+00:00 Author: Emilie SCHOL Skin Absorption Studies | Cosmetic Labs ## What is Skin Absorption Studies? Measure release, absorption or localisation using an appropriate sample and protocol. Penetration and delivery studies investigate where a cosmetic ingredient goes after application and how its release or availability depends on the formulation. The appropriate service depends on whether the question concerns release, uptake, permeation or location within skin. ### Why do you need this service? Start with the analyte, intended use, formulation, relevant skin compartment and proposed comparison. Ask whether the question concerns release from the product, retention within skin or passage through a barrier. These endpoints require different models and interpretation. ### Who provides Skin Absorption Studies services? 2 company profiles linked to this service or its subservices. Companies ## Companies linked to Skin Absorption Studies or a more specific service Find below labs that added this service to their company profile. You may also [browse the full directory here](/world). ### [BOC Sciences](https://cosmetic-labs.com/world/north-america/united-states/boc-sciences) New York-based BOC Sciences supplies research chemicals and provides synthesis, fermentation, analytical and delivery services for life-science projects. [See company profile](https://cosmetic-labs.com/world/north-america/united-states/boc-sciences) ### [Hoynoza Technologies](https://cosmetic-labs.com/world/asia/india/hoynoza-technologies-private-limited) Choose us for our unwavering commitment to pioneering innovative exosomes and liposomes based biotechnological solutions and prioritizing skincare. [See company profile](https://cosmetic-labs.com/world/asia/india/hoynoza-technologies-private-limited) Definition ## Penetration and delivery studies No single method describes every stage between release from a formula and delivery to a skin compartment. Studies should define the analyte, target location and endpoint before choosing a model. Greater penetration is not automatically beneficial, especially when the intended action is at the surface. ### Movement across a barrier and superficial deposition [Franz cell diffusion testing](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies/franz-cell) measures transfer across a selected membrane or skin preparation into a receptor compartment. [Tape stripping analysis](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies/tape-stripping) samples successive portions of the stratum corneum to investigate superficial deposition, not the full dermis. ### Uptake and formulation comparisons [Skin absorption profiling](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies/skin-absorption) considers retained and permeated material under defined exposure conditions. [Active delivery assessment](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies/active-delivery) compares how a formulation or carrier makes an ingredient available in the selected model. ### Release timing and location [Time-release studies](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies/time-release) follow release across specified sampling points. [Skin layer distribution analysis](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies/skin-layer) measures an analyte in separated skin compartments or uses suitable imaging to investigate localization. Interpretation depends on barrier integrity, recovery, analytical sensitivity and model relevance. Distribution or release data alone do not prove biological activity or clinical efficacy. ## 6 subcategories of Skin Absorption Studies services [Ingredient Release-Rate Studies](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies/time-release) Measure ingredient release rates from a formula or carrier. Emilie SCHOL [Franz cell diffusion testing](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies/franz-cell) Measure ingredient transfer across a membrane using Franz diffusion cells. Emilie SCHOL [Skin absorption profiling](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies/skin-absorption) Measure ingredient absorption and recovery in skin studies. Emilie SCHOL [Tape stripping analysis](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies/tape-stripping) Measure superficial ingredient deposition using tape stripping. Emilie SCHOL [Skin layer distribution](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies/skin-layer) Locate ingredients within defined skin layers. Emilie SCHOL [Active delivery assessment](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies/active-delivery) Compare ingredient availability and localisation across delivery systems. Emilie SCHOL Applications ## Define a usable outcome The selected study should produce a protocol and analytical report describing the test system, dose, sampling, recovery, controls and endpoint calculations. Agree whether the result will be mass per area, a recovered fraction, a concentration profile or a comparative release curve. Interpretation depends on a method capable of measuring the analyte in the relevant matrices. An in-vitro or ex-vivo finding does not automatically establish clinical efficacy, human systemic exposure or therapeutic benefit. Greater penetration is not inherently preferable for a cosmetic: the desired site of action and safety context matter. Use this group to select the appropriate service, then scope that study’s deliverables and limitations directly. ExplorationLearn more about Cosmetic Quality TestingExplore cosmetic quality tests for composition, texture, preservation, stability and packaging compatibility, with evidence matched to your question. Explore another Cosmetic Quality Testing page on cosmetic-labs.com. #### [Physicochemical Testing](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/characterization) Characterise cosmetic composition, structure and physical behaviour through active content, particle, pH, flow and molecular-property measurements. [Check this service](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/characterization) #### [Texture Colour Testing](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/texture-sensory) Measure cosmetic texture, spreading, applicator transfer and colour with suitable instruments to compare formulations and inform product specifications. [Check this service](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/texture-sensory) #### [Microbiological Testing](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/preservative-testing) Assess cosmetic microbiological quality through challenge testing, contamination screening and preservation studies, with each test question defined. [Check this service](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/preservative-testing) #### [Stability & Packaging Compatibility](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/compatibility-testing) Investigate stability and packaging compatibility through storage studies and contact testing, with evidence informing cosmetic shelf-life decisions. [Check this service](https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/compatibility-testing) Continue with [Google](https://cosmetic-labs.com/?lean_auth=start&provider=google&redirect_to=https://cosmetic-labs.com/&error_return=https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies) [LinkedIn](https://cosmetic-labs.com/?lean_auth=start&provider=linkedin&redirect_to=https://cosmetic-labs.com/&error_return=https://cosmetic-labs.com/services/in-vitro-testing/cosmetic-quality-testing/penetration-studies) What does “Verified” mean? Verified means the claimant’s company affiliation was checked. Something not right?Let us know if any information on this page is incorrect or if you have concerns about who manages it. [Report an issue](https://cosmetic-labs.com/platform/contact) © 2026 Cosmetic Labs. 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