Document and Entity Information (USD $)	12 Months Ended
	May 31, 2012	Aug. 29, 2012	Aug. 20, 2012
Document And Entity Information
Entity Registrant Name	LESCARDEN INC
Entity Central Index Key	0000058822
Document Type	10-K
Document Period End Date	May 31, 2012
Amendment Flag	false
Current Fiscal Year End Date	--05-31
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float		$ 467,998
Entity Common Stock, Shares Outstanding			40,076,783
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2012