The types segmentation of the Stable Isotopes market distinguishes between light isotopes, heavy isotopes, enriched isotopes, and natural‑abundance isotopes, each influencing demand patterns. Light isotopes such as ²H, ¹³C, ¹⁵N, and ¹⁸O are widely used in biochemical and ecological studies, generating roughly 35 % of market volume due to their broad analytical applicability. Heavy isotopes, including ³⁴S, ⁸⁷Sr, and ⁹⁹Ru, serve niche roles in geochemical tracing and nuclear industry applications, contributing about 25 % of sales. Enriched isotopes—produced via centrifugation or laser separation—command premium pricing and support high‑precision research, accounting for 30 % of the market. Natural‑abundance isotopes, which require no enrichment, are employed in routine quality‑control and educational labs, representing the remaining 10 %. This taxonomy clarifies how each isotope type adds to the overall market footprint, reinforcing the analytical depth of the Stable Isotopes segmentation.