Cover - shares	3 Months Ended
	Mar. 31, 2021	May 14, 2021
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity Registrant Name	HIMS & HERS HEALTH, INC.
Entity Incorporation, State or Country Code	DE
Entity File Number	001-38986
Entity Tax Identification Number	98-1482650
Entity Address, Address Line One	2269 Chestnut Street, #523
Entity Address, City or Town	San Francisco
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94123
City Area Code	415
Local Phone Number	851-0195
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001773751
Current Fiscal Year End Date	--12-31
Common Class A
Document Information [Line Items]
Title of 12(b) Security	Class A common stock, $0.0001 par value per share
Trading Symbol	HIMS
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding (in shares)		183,424,155
Redeemable warrants, each whole warrant exercisable for one share of Class A common stock
Document Information [Line Items]
Title of 12(b) Security	Redeemable warrants, each whole warrant exercisable for one share of Class A common stock
Trading Symbol	HIMS WS
Security Exchange Name	NYSE
Common Class V
Document Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		8,377,623