Share capital (Narrative) (Details) - USD ($)					1 Months Ended			12 Months Ended		23 Months Ended
	Nov. 14, 2024	May 03, 2024	May 12, 2023	Dec. 06, 2022	Oct. 28, 2024	Jun. 28, 2024	Mar. 17, 2023	Dec. 31, 2024	Dec. 31, 2023	May 31, 2023	Jul. 30, 2024
Share Capital Note Disclosure [Line Items]
Reverse share split ratio					1-for-2
Cash paid for interest								$ 40,563	$ 0
Accrued interest converted into common shares								38,462	0
Issuance of common shares upon conversion of debt								5,210,962
Issuance costs in connection with a private placement								375,000
Total proceeds from IPO								$ 2,049,716	$ 0
Series A and Series A-1 Preferred Shares [Member]
Share Capital Note Disclosure [Line Items]
Number of preferred shares issued							13,491,174
Number of preferred shares outstanding							13,491,174
Preferred stock, dividend rate							8.00%
Preferred stock, redeemable percentage							75.00%
Common stock, conversion basis							1.706721-to-1 basis
Reverse share split ratio					1-for-2
Issuance of common shares upon conversion of preferred shares (Shares)					3,952,366
Number of common shares issued on conversion of preferred stock							7,904,731
Convertible Promissory Notes [Member]
Share Capital Note Disclosure [Line Items]
Principal amount of convertible promissory notes		$ 5,172,500								$ 2,500,000
Interest rate of convertible promissory notes		10.00%								8.00%
Value of convertible promissory notes that could be converted into preferred shares										$ 1,500,000
Conversion price of preferred shares										$ 2.64122
Value of convertible promissory notes remaining for conversion										$ 1,000,000
Determinant for converting remaining value of convertible promissory notes										25,000,000
Principal amount of additional convertible promissory notes										$ 3,000,000
Percentage of price per preferred shares for unpaid accrued interest										80.00%
Terms of conversion								(i) a 20% discount to the initial public offering price and (ii) $4.00; or if there had been a change of control, at a conversion price of $4.00 per common share. On or after January 1, 2025, conversion would be at the option of the holder at a conversion price of $4.00 per common share. The Company had the option to redeem all or any portion of the convertible notes at a price equal to 100% of the outstanding principal plus accrued and unpaid interest up to but not including the date of redemption. In the event of a change of control, the Company would offer to repurchase the convertible notes at a price equal to 101% of the principal plus accrued and unpaid interest up to but not including the date of repurchase.
Conversion price											$ 4
Cash paid for interest						$ 40,563
Accrued interest converted into common shares						38,462
Issuance of common shares upon conversion of debt						$ 5,172,500
Issuance of common shares upon conversion of debt (Shares)						1,308,798
Convertible Promissory Notes [Member] | SkinJect [Member]
Share Capital Note Disclosure [Line Items]
Reverse share split ratio					1-for-2
Issuance of common shares upon conversion of promissory notes (Shares)			1,294,447		647,224
Simple Agreement For Future Equity ("SAFE") [Member] | Convertible Notes Payable [Member]
Share Capital Note Disclosure [Line Items]
Reverse share split ratio					1-for-2
Issuance of common shares upon conversion of promissory notes (Shares)			54,571		27,286
Proceeds from simple agreement for future equity				$ 150,000
Threshold limit of financing				$ 3,000,000
Private Placement [Member]
Share Capital Note Disclosure [Line Items]
Number of common shares issued in connection with a private placement						1,461,250
Value of common shares issued in connection with a private placement						$ 5,845,000
Common shares, price per share						$ 4
Issuance costs in connection with a private placement						$ 375,000
Initial Public Offering [Member]
Share Capital Note Disclosure [Line Items]
Number of shares issued in IPO	970,000
Price per share in IPO	$ 4.125
Number of options exercised	145,500
Exercise price of options exercised	$ 0.01
Total proceeds from IPO	$ 4,002,705
Share issuance cost under IPO	$ 2,218,014
Fair value per share	$ 2.65
Fair value per warrant	$ 1.7419