Methods for preparing squalene

A method for preparing squalene from a composition comprising squalene from an animal source, said method comprising steps of (a) a purification distillation carried out at a temperature T1, (b) a denaturing distillation carried out at a temperature T2;

• wherein steps (a) and (b) may be performed in either order;
• T1 and T2 are sufficient to cause squalene to boil;
• T2>T1;
• and T2≥200° C.;
• and T2−T1 is from 10° C. to 300° C.

A method for re-distillation of a composition comprising 99% squalene or more, said method comprising:

• (i) providing a squalene-containing composition comprising 99% squalene or more from an animal source, wherein said squalene-containing composition has been obtained by a process of purification distillation carried out at a temperature T1;
• and
• (ii) subjecting the composition from (i) to a re-distillation, said re-distillation being a denaturing distillation carried out at a temperature T2;
• wherein T2≥200° C.;
• wherein T2−T1 is from 10° C. to 300° C.