v3.25.2
Cover - USD ($)
 12 Months Ended
Mar. 31, 2022
Jul. 15, 2025
Jun. 30, 2021
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Mar. 31, 2022    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2022    
Current Fiscal Year End Date --03-31    
Entity File Number 333-205822    
Entity Registrant Name SEGUIN NATURAL HAIR PRODUCTS INC.    
Entity Central Index Key 0001642363    
Entity Tax Identification Number 35-7654530    
Entity Incorporation, State or Country Code NV    
Entity Address, Address Line One 50 Yorkville Street    
Entity Address, Address Line Two Suite 2803    
Entity Address, City or Town Toronto    
Entity Address, State or Province ON    
Entity Address, Country CA    
Entity Address, Postal Zip Code M4W 0A3    
Country Region 1+    
City Area Code 647    
Local Phone Number 271-4226    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status No    
Entity Interactive Data Current No    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Elected Not To Use the Extended Transition Period true    
Entity Shell Company true    
Entity Public Float     $ 0
Entity Common Stock, Shares Outstanding   16,843,878  
Document Financial Statement Error Correction [Flag] false    
Auditor Name Fruci & Associates II, PLLC    
Auditor Firm ID 5525    
Auditor Location Spokane, Washington