In recent years, the dermatological and aesthetic landscape has undergone a paradigm shift, moving from symptomatic procedures to biologically driven regenerative interventions.
At the center of this evolution is the emergence of regenerative medicine and stem cell-based therapies, which offer targeted rejuvenation at the cellular level and tissue restoration.
One notable breakthrough has been polydeoxyribonucleotide (PDRN), a DNA-based compound extracted from the sperm of Oncorhynchus mykiss salmon.
PDRN acts through A2A purinergic receptors, activating anti-inflammatory pathways, stimulating fibroblast proliferation, angiogenesis and collagen synthesis.
Clinically, it is indicated for photoaging, atrophic scars, melasma and general skin revitalization, restoring hydration, firmness and dermal structure.
Delivery is achieved through mesotherapy or microinjections, often in combination with microneedling or fractional lasers.
No less transformative is the therapeutic use of exosomes — nanoscale extracellular vesicles 30–150 nm in size, secreted by mesenchymal stem cells, fibroblasts or adipose tissue.
These vesicles carry proteins, mRNA and microRNA, mediating intercellular communication and tissue remodeling, modulating inflammation, activating dermal fibroblasts and enhancing the production of collagen and elastin.
Indications include acne scars, hyperpigmentation, aging skin and post-procedural recovery, especially when using exosomes from umbilical MSCs or adipose tissue in combination with microneedling.
In parallel, bioactive peptides — short chains of amino acids from collagen, keratin or synthetic sources — are increasingly used in regenerative cosmeceuticals.
They activate cellular repair processes, stimulate collagen synthesis and strengthen the extracellular matrix, helping with fine wrinkles, dullness and tired skin.
Innovations have also extended to synthetic exosomes — engineered nanovesicles that overcome the limitations of natural ones in stability and specificity, with the ability to load a customized cargo.
According to the source, as cellular science merges with clinical aesthetics, the future promises bio-individualized, repair-driven skin therapies, elevating cosmetic medicine from surface correction to deep renewal.
