Telomere abrasion is considered a seal of the ageing process. Significant progresses have been made in understating the basic biology of telomere function through in vitro research, the rendition of this research to an in vivo perspective is limited. Though numerous techniques are there to label telomeres, most of these are toxic to cells and cause DNA damage or non-compatible for in vivo applications. The CRISPR-Cas system has enabled the refinement of these regions by fusing Cas9 to a fluorescent protein, allowing telomeres to be visualised in living organism. The success rate of CRISPR Cas 9 technique is a new promise for future genome editing therapeutics. Telomere length and rate of telomere shortening are directly related to aging and eventual death for any organism. This effect can potentially be reversed by increasing the telomere length of an organism. CRISPR Cas system is an effective tool that can be used in the insertion of telomeres in the DNA of any given organism without error.