--- title: "Cellular autophagy" description: "Investigate cellular autophagy and degradation flux." image: "https://cosmetic-labs.com/wp-content/uploads/cellular-autophagy-service-1200x1200-1.webp" --- # Cellular autophagy > Investigate cellular autophagy and degradation flux. Source: https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/cellular-autophagy Created: 2025-03-24T09:27:39+00:00 Modified: 2026-10-25T10:06:37+00:00 Author: Emilie SCHOL Cellular autophagy | Cosmetic Labs ## What is Cellular autophagy? Cellular autophagy testing examines how cosmetic ingredients affect the breakdown and recycling of cellular components. LC3, p62, imaging, and lysosomal measurements help characterize pathway activity, with flux analysis needed to distinguish increased turnover from blocked degradation. ### Why do you need this service? Use autophagy studies to investigate cellular material turnover under baseline or defined stress conditions. Complementary flux and damage measurements help determine whether marker changes reflect useful turnover or impaired degradation. ## Be the first company on this service page No published company profiles are linked to Cellular autophagy or its more specific services yet. Explore the service categories or add an explicitly supported capability to your company profile. [List your company](https://cosmetic-labs.com/account/companies/new) Definition ## Cellular autophagy Autophagy transports cellular material to lysosomes for degradation and recycling. Cosmetic research can investigate this process in skin cells under baseline or defined stress conditions. It should not be described as direct proof that an ingredient removes environmental pollutants. ### Pathway measurements Labs expose keratinocytes or fibroblasts to the test material and use complementary methods to investigate autophagy. LC3 puncta imaging and LC3-II measurements - p62 protein analysis - Lysosomal activity measurements, including suitable cathepsin assays - Mitochondrial quality-control endpoints where relevant An accumulation of LC3-II or autophagosomes may indicate increased formation or impaired breakdown. Measuring autophagic flux with suitable controls is therefore important. Changes in p62 also need interpretation alongside its production and degradation. ### Functional and development interpretation Concentration-response and time-course studies can compare the ingredient with appropriate reference conditions. Stress and viability measurements help establish whether the response accompanies reduced damage or cellular injury. Reports should identify which stage of the pathway was measured and whether turnover was demonstrated. Findings can inform research on cellular maintenance under pollutant stress, but do not establish generalized detoxification, skin renewal, or consumer anti-pollution benefits on their own. Applications ## Applications of cellular autophagy studies ### Comparing pathway responses LC3 imaging, LC3-II and p62 measurements can investigate autophagy in keratinocytes or fibroblasts. More autophagosomes may indicate increased formation or blocked breakdown. Suitable turnover controls are needed before reporting increased autophagic flux, and p62 production must be considered alongside degradation. ### Studying pollutant-related stress A specified challenge can test whether pathway changes accompany reduced cellular damage. Lysosomal activity, viability and appropriate reference conditions add context. The results can guide ingredient research but do not establish direct removal of environmental toxins, generalized skin detoxification or a consumer anti-pollution benefit. ExplorationLearn more about Xenobiotic & Cellular Clearance StudiesInvestigate xenobiotic responses and cellular clearance through metabolism, autophagy and protein turnover studies with endpoint-specific interpretation. Explore another Xenobiotic & Cellular Clearance Studies page on cosmetic-labs.com. #### [Pollutant protection / skin detoxification testing](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/pollutant-protection) Investigate responses to specified pollutants through metabolism, oxidative damage and barrier assays, with conclusions tied to measured endpoints. [Check this service](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/pollutant-protection) #### [AHR pathway modulation](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/ahr-pathway) Investigate ingredient effects on AHR signalling in skin models through receptor activity, downstream gene expression and damage-related endpoints. [Check this service](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/ahr-pathway) #### [Enzyme induction](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/detox-enzymes) Screen ingredient effects on cellular response pathways using reporter assays and enzyme measurements to guide more specific metabolic investigations. [Check this service](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/detox-enzymes) #### [Phase I/II enzyme induction](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/phase-enzymes) Phase I/II enzyme induction assays measure expression and activity changes in skin models to investigate ingredient effects on pollutant handling. [Check this service](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/phase-enzymes) #### [Phase-I/II biotransformation](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/xenobiotic) Phase I/II biotransformation studies track defined compounds and metabolites in skin-cell or enzyme systems to investigate chemical conversion. [Check this service](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/xenobiotic) #### [Metal chelation](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/metal-chelation) Metal chelation testing measures binding capacity, kinetics and complex stability to assess how cosmetic formulations bind specified metal ions. [Check this service](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/metal-chelation) #### [Proteasome activity](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/proteasome) Proteasome activity testing measures protein-cleavage signals and damage markers to investigate cosmetic ingredients in cellular stress models. [Check this service](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/proteasome) #### [Stress response proteins](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/stress-proteins) Assess heat-shock proteins and stress responses after pollutant exposure, interpreting markers alongside cell viability and functional measurements. [Check this service](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/stress-proteins) #### [Barrier function reinforcement](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/barrier-reinforcement) Assess barrier properties during a defined pollutant challenge using permeability, water-loss, lipid organisation and skin-model integrity measurements. [Check this service](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/barrier-reinforcement) #### [DNA protection mechanisms](https://cosmetic-labs.com/services/clinical/efficacy/detox-xenobiotic-defense/dna-protection) DNA protection studies compare damage markers and recovery in challenged skin-cell models to investigate cosmetic ingredient mechanisms. 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