Growth Factor & Exosome Skincare

What growth factors actually do

Growth factors are the signalling proteins skin uses to tell itself to repair. They direct collagen production, cell turnover, and wound healing. Output falls with age, which is why skin that once recovered quickly from a blemish or a procedure gradually stops doing so.

The products here supply those signals from outside. This is the category that works slowly and compounds, so it rewards consistency more than almost anything else in skincare.

The two technologies

Conditioned media. SkinMedica TNS Advanced+ and TNS Recovery Complex are built on human fibroblast conditioned media, the most studied growth factor complex in aesthetics.

Stem cell conditioned media. CALECIM works from PTT-6, harvested from umbilical cord lining stem cells. A single millilitre carries roughly 3,000 growth factors, cytokines and exosomes. CALECIM Professional Serum is the most concentrated of the line.

Alto Advanced Defense and Repair Serum takes a third route, using the GDF-11 peptide alongside marine proteins and antioxidants.

Where exosomes fit

Exosomes are tiny vesicles cells use to carry messages to one another. They arrive as part of PTT-6 rather than as an isolated ingredient, so every CALECIM product in this collection delivers them alongside the growth factors and cytokines.

Lauren's guidance

Lauren Siso is a licensed esthetician of more than ten years and a multi-time winner of Best Esthetician and Best Facial in Atlanta. She keeps CALECIM Professional Serum in every treatment room and applies it the moment a microneedling or laser session ends, then sends the Recovery Night Complex home for the week that follows.

Her one instruction for anyone starting growth factors: give it ninety days. This category does not announce itself in a week.

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