Long before collagen became a skincare buzzword, researchers in Japan were already studying it with depth and precision. At Jellice, that work grew out of decades of experience with gelatin, collagen, and applied bioscience, eventually leading to the discovery of Collagen Tripeptide, or CTP.
This was not a trend-led ingredient or a marketing invention. It was the result of careful scientific inquiry aimed at understanding collagen more precisely and developing a more refined material from it.
A Legacy of Innovation
Over 85 years ago, Jellice began with gelatin, a collagen-derived material used across a wide range of industries. Over time, that foundation expanded into a broader and more ambitious research effort centered on collagen itself.
Collagen had long been valued for its structural role, but from a scientific standpoint, it also posed an intriguing challenge. In its natural form, collagen is a large, complex protein. For researchers, the question was not simply how to work with collagen, but how to study its structure more closely in the hope of optimizing it to its fullest potential.
That question shaped decades of investigation.
Looking More Closely at Collagen
Collagen is built from repeating amino acid sequences that give it its characteristic structure. As researchers continued studying collagen and collagen-derived materials, they began paying closer attention to what happened when collagen was broken down into smaller fragments.
This is where the work became especially revealing.
Rather than treating all collagen fragments as broadly interchangeable, the research began to suggest that certain smaller units might hold particular significance. Among them was a tripeptide sequence composed of just three amino acids: Gly-Pro-Hyp, short for glycine, proline, and hydroxyproline.
That sequence stood out because it reflected one of collagen’s characteristic motifs in an especially compact form.
The Breakthrough
The next step came through enzymatic hydrolysis, a process that uses carefully selected enzymes to cleave collagen into much smaller pieces. This was not a rough or random breakdown. The enzymes were chosen to act on specific bonds within the collagen chain, allowing researchers to generate more defined peptide fragments rather than an undifferentiated mixture.
Through that process, Jellice was able to focus on collagen tripeptides, including the Gly-Pro-Hyp sequence, as a distinct material of interest.
That was the real breakthrough.
The significance of CTP was not simply that collagen had been made smaller. It was that a specific collagen-derived tripeptide could be identified, isolated, and developed with intention. Compared with larger collagen materials, these tripeptides are far smaller in molecular size, around 300 daltons, and highly water-soluble, qualities that helped distinguish them scientifically and technically from broader collagen categories.
The Patent Milestone
Once that discovery had taken shape, it moved from scientific insight into formal innovation.
On September 10, 1993, Dr. Yasuo Sakai filed a patent related to Collagen Tripeptide. That filing is a defining moment in the CTP story because it marked the point at which years of collagen research were translated into something identified, protected, and ready to be advanced further.
The patent mattered not only as a legal milestone, but as evidence of technical precision. Producing collagen tripeptides at meaningful concentrations required careful control over enzyme selection, reaction conditions, and purification methods. This was not a single flash of inspiration. It was the result of sustained refinement and disciplined process development.
What Set It Apart
What made CTP so important was its specificity.
By focusing on a defined collagen-derived tripeptide rather than a broad mixture of broken-down collagen materials, Jellice helped establish a more precise category of collagen innovation. That distinction gave CTP greater scientific credibility.
Its technical profile also mattered. Because collagen tripeptides are exceptionally small, highly soluble, and structurally tied to collagen itself, they stood apart from larger, less defined collagen-derived materials. For researchers and formulators alike, this made CTP a meaningful advancement rather than simply another peptide claim.
Today, peptides appear everywhere in beauty. But CTP came from something deeper: decades of collagen science, careful process development, and a long-term commitment to understanding the material at a more refined level.
A Discovery With Lasting Meaning
CTP was not introduced as a passing phrase or borrowed from a trend cycle. It came out of sustained research, technical rigor, and a genuine effort to understand collagen more closely. That gives it a depth that still matters.
Years after the original patent filing, September 10 came to be recognized in Japan as CTP Day, a tribute to the date when the Collagen Tripeptide story officially began. It suggests that CTP was never just a scientific milestone. It became part of a larger legacy.
