An in vitro study published in the journal Cureus in March 2025 has suggested that a nutrient-rich dilution of calcium hydroxyapatite (CaHA) may significantly boost the compound’s regenerative potential. 

Researchers conducted a comparative in vitro analysis using Stiim®, a commercial CaHA product, diluted with either standard saline or a custom poly-micronutrient solution containing essential vitamins, amino acids, and minerals. 

Microscopic imaging and cell culture assays were used to evaluate how each formulation interacted with fibroblasts. The poly-micronutrient mix appeared to outperform the saline-diluted formulation, showing improved cell viability, increased fibroblast activation, and greater collagen synthesis markers. 

“The key finding is that the micronutrient solution may act synergistically with CaHA to enhance its effects at a cellular level,” the authors said, noting, “This could potentially translate into longer-lasting and more natural rejuvenation outcomes in clinical use.” 

There were no signs of destabilisation in the poly-micronutrient mixture, indicating the solution could be safe for future clinical testing. Clinical trials are necessary to confirm the findings in real-world applications and to determine optimal concentrations for safety and efficacy.