Science
Mechanism of Action
HACM, also known as Adipose-Derived Stem Cell-Conditioned Medium (ADSC-CM), acts as a potent cellular communicator, delivering a comprehensive array of growth factors (e.g., EGF, basic FGF, TGF-β1), cytokines, enzymes, and extracellular matrix proteins. Its primary function involves stimulating the skin's intrinsic production of critical biopolymers like collagen and hyaluronic acid, alongside promoting the proliferation of both dermal and epidermal cells. HACM also aids in skin brightening by inhibiting melanin synthesis, supports tissue repair through anti-inflammatory properties, and actively combats photoaging by modulating UVB-responsive signaling pathways and upregulating antioxidant defenses. This multifaceted action leads to enhanced cell restoration, regeneration, and improved skin integrity.
Research
Clinical Evidence
High confidence5-10% for topical skin applications
Key findings
- 01 In a clinical study with 20 Asian healthy female volunteers, twice-daily application for 8 weeks demonstrated effectiveness against wrinkles, improved skin whitening, and stimulated the production of collagen and hyaluronic acid, alongside increased proliferation of dermal and epidermal cells.
- 02 A clinical study involving 20 subjects showed significant improvements in skin moisture content, a reduction in transepidermal water loss (TEWL), and enhancements in both whitening and wrinkle reduction over 28 days. Formulations incorporating polymersomes further amplified these benefits.
- 03 An 8-week experimental randomized controlled trial with 64 photoaged subjects revealed significant improvements in pore appearance, wrinkles, spot visibility (both polarized and UV parameters), and overall skin tone.
- 04 In vitro studies on human keratinocyte and dermal fibroblast cell lines demonstrated inhibition of UVB-induced activation of MAPK/AP-1 signaling pathways, increased expression of TGF-β and Smad 2/3 (indicating enhanced collagen synthesis), and reduced levels of inflammatory markers, signifying strong anti-photoaging activities.
- 05 In vitro research indicated an increase in the proliferation of human dermal papilla cells by up to 130%, suggesting potential benefits for hair growth.
Transparency
Dusting Analysis
No specific data available to assess dusting practices or thresholds for this ingredient.
The Formula
Formulation
Stability
Lyophilized Human Adipocyte Conditioned Media exhibits stability for 2 years when stored at 2-8°C. Liquid formats require refrigeration at 2-8°C for short-term storage (up to 72 hours) and long-term freezing at -20°C. Formulation enhancements, such as the incorporation of polymersomes, can significantly improve its percutaneous absorption and efficacy.
Synergies
- Polymersome-containing formulations for enhanced percutaneous absorption and effectiveness.
Safety
Safety Profile
While reported studies generally indicate no serious adverse effects and production adheres to strict KFDA guidelines, the ingredient has not undergone formal review by the CIR or SCCS. Importantly, the EWG Skin Deep database lists 'Human Adipose Derived Stem Cell Conditioned Media' as 'Unacceptable' for EWG VERIFIED products, citing its status as 'Banned or found unsafe for use in cosmetics' by the EU Cosmetics Directive, based on government restrictions. This regulatory classification raises significant concerns for global product compliance, despite positive study outcomes.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Despite compelling clinical data demonstrating significant efficacy for anti-aging, hydration, and skin brightening across all skin types, the ingredient's classification as banned or unsafe by the EU Cosmetics Directive poses a substantial regulatory and safety concern, leading to a 'questionable' rating for general cosmetic application.
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