Aging skin often leads to an increasingly complicated skincare routine. One product promises to target fine lines, another aims to restore firmness, and several more are added to address dryness, texture, or radiance. However, accumulating a long list of cosmetics does not necessarily address the fundamental health and function of the skin itself.
An emerging approach involves advanced skincare technologies based on growth factors and exosomes. Instead of merely treating the surface layer, these innovative formulations are designed to support the cellular communication pathways that promote skin renewal and structural repair.
What happens within aging skin?
As the body’s primary barrier to the environment, skin is constantly exposed to external threats including ultraviolet radiation, pollution, and disease. Over time, these stressors combine with internal biological changes to alter the skin’s structure and appearance.
With age, the essential proteins, lipids, and sugars that support healthy skin gradually diminish. This breakdown weakens the extracellular matrix in the dermis—the vital framework responsible for structural support, leading to classic signs of aging: loss of firmness, less defined facial contours, reduced hydration, and increased visibility of lines, wrinkles, and sagging. Furthermore, dermal fibroblasts become less active, reducing their ability to synthesize collagen and naturally secrete essential growth factors.
Why use growth factors and exosomes in skincare?
Growth factors are naturally occurring proteins secreted by key cells such as fibroblasts, keratinocytes, and melanocytes. They serve as essential signalling molecules that drive cell growth, tissue repair, and regeneration.
Exosomes similarly play a crucial role in cell-to-cell communication. Originally studied in wound-healing models, growth factor and exosome technologies have now been adapted for cosmetic formulations to improve the appearance of aging skin. This approach moves skincare beyond surface-level coatings toward solutions that actively encourage skin restoration.
Stem cells, found in both plants and animals, are defined by their ability to multiply and differentiate into specialized cell types while orchestrating tissue repair and regeneration.
Importantly, stem cell-derived skincare does not contain living stem cells. For example, the active ingredient PTT-6® is formulated from stem cell secretions, delivering a powerful blend of proteins, growth factors, and cytokines.
Understanding PTT-6®
PTT-6® was developed by CellResearch Corporation, the parent company of clinical brand Calecim Professional. The active ingredient is derived from the cell secretions of cord-lining stem cells sourced ethically from red deer umbilical tissue in New Zealand.
Research about stem cell-rich perinatal tissue led to PTT-6®, a complex formulation containing a high concentration of signaling proteins, growth factors, and cytokines.
These signaling molecules encourage cellular turnover and tissue restoration. According to Hardik Vacchani, Business Development Manager at CellResearch Corporation, PTT-6® signals skin cells to increase turnover, boost production of collagen, elastin, and hyaluronic acid, and stimulate cell proliferation and migration, processes fundamental to repair and regeneration.
This cellular messaging framework spans both therapeutic skin repair and anti-aging cosmetic applications. PTT-6® serves as the core active ingredient across Calecim Professional’s skin and hair care lines, and powers SOLLAGEN™, a targeted cream developed in 2023 by CellResearch Corporation for diabetes-related skin conditions.
What repair research can tell us about the ingredient
SOLLAGEN™ pairs PTT-6® with urea, dimethicone, curcumin, and glycerin, with each ingredient playing a functional role. Urea moisturizes and gently exfoliates to remove dead skin cells. Dimethicone protects dry skin and reduces moisture loss while remaining breathable. Curcumin contributes antioxidant and anti-inflammatory benefits, while glycerin hydrates and preserves moisture balance.
Calecim Professional’s formulation has been applied to complex dermatological conditions, including diabetic foot ulcers, venous and arterial leg ulcers, pressure injuries, burns, cuts, abrasions, eczema, and atopic dermatitis.
In a clinical study of 42 patients with chronic diabetic wounds at Sengkang General Hospital in Singapore, SOLLAGEN™ achieved a 75 percent reduction in wound size by week two in 66 percent of cases. Similarly, a trial of 52 patients at Galilee Hospital in Uganda demonstrated a 78 percent reduction by week three in nearly 70 percent of cases.
While wound-care results differ from cosmetic outcomes, these clinical trials highlight the tissue-repair capability of PTT-6® and provide meaningful context for its role in anti-aging skincare.
Evaluating skincare for firmness, hydration and radiance
When assessing skincare for aging menopausal skin, three primary questions should guide product choices: Does the formula maintain hydration? Does it support the skin’s structural matrix? Is there scientific evidence supporting the active ingredients rather than generic marketing claims?
Laboratory studies demonstrate that applying exosome-based skincare like Calecim Professional containing PTT-6® to aged skin cells led to a 56 percent increase in elastin synthesis and an 83 percent increase in hyaluronic acid production. These biological impacts correlate directly with enhanced skin firmness, elasticity, plumping, and improved overall radiance.
It remains important to distinguish research findings from guaranteed personal outcomes. Individual factors such as genetics, lifestyle, routine, and environmental exposure vary, and no single product can reverse all signs of aging.
A refined skincare regimen prioritizes purposeful, well-defined ingredients. Hydrating agents protect against moisture loss, protective barrier ingredients defend against environmental stress, and growth factor or exosome formulations address structural aging by supporting cellular renewal and repair.
Ultimately, the best skincare approach for aging menopausal skin focuses on quality over quantity. Effective care centers on what maturing skin needs most: deep hydration, barrier support, and targeted ingredients that operate below the surface. As regenerative skincare advances, ingredients like PTT-6® suggest that healthier-looking skin relies on optimizing cellular communication rather than overloading your routine with additional cosmetics.