Document and Entity Information Document Information [Table] Class of Stock [Axis] Class of Stock [Domain] American depositary shares American depositary shares Common Stock [Member] Ordinary shares Ordinary shares Entity Addresses, Address Type [Axis] Address Type [Domain] Business Contact [Member] Business Contact Document Information [Line Items] Document and Entity Information Document Type Document Registration Statement Document Annual Report Document Period End Date Document Transition Report Document Shell Company Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Address Line Two Entity Address, City or Town Entity Address, Postal Zip Code Entity Address, Country Contact Personnel Name Country Region City Area Code Local Phone Number Contact Personnel Email Address Trading Symbol Security Exchange Name No Trading Symbol Flag Title of 12(b) Security Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Emerging Growth Company Entity Ex Transition Period ICFR Auditor Attestation Flag Document Financial Statement Error Correction [Flag] Document Accounting Standard Entity Shell Company Entity Central Index Key Current Fiscal Year End Date Document Fiscal Period Focus Document Fiscal Year Focus Amendment Flag Auditor Name Auditor Firm ID Auditor Location CONSOLIDATED BALANCE SHEETS Statement [Table] CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS Statement [Line Items] Statement CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS Assets [Abstract] ASSETS Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Due from Related Parties, Current Amounts due from related parties Other Receivable, after Allowance for Credit Loss, Current, Related Party, Type [Extensible Enumeration] Prepaid Expense and Other Assets, Current Prepayments and other current assets Prepayments and other current assets Assets, Current Total current assets Property, Plant and Equipment, Net Property, equipment and software, net Net book value Operating Lease, Right-of-Use Asset Operating lease right-of-use assets Other Assets, Noncurrent Other non-current assets Assets TOTAL ASSETS LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Accounts Payable, Current Accounts payable Contract with Customer, Liability, Current Contract liabilities Other Liabilities, Current Amounts due to related parties Other Liability, Current, Related Party, Type [Extensible Enumeration] Accrued Liabilities and Other Current Liabilities Accrued Liabilities and Other Current Liabilities Accruals and other current liabilities Accruals and other current liabilities Income Tax Payable Income tax payable Warrants and Rights Outstanding Warrant liabilities Short-term Bank Loans and Notes Payable Short-term borrowings Bank loans Long-term Debt, Current Maturities Current portion of long-term borrowings Current portion of long-term borrowings Operating Lease, Liability, Current Current portion of operating lease liabilities Current portion of operating lease liabilities Liabilities, Current Total current liabilities Long-term Debt, Excluding Current Maturities Long-term borrowings Total non-current borrowings Operating Lease, Liability, Noncurrent Operating lease liabilities Operating lease liabilities Liabilities TOTAL LIABILITIES Commitments and Contingencies. Commitments and contingencies CONTINGENTLY REDEEMABLE CONVERTIBLE PREFERRED SHARES Mezzanine equity: Temporary Equity, Carrying Amount, Attributable to Parent Ending balance Beginning balance Series A non-voting contingently redeemable convertible preferred shares (par value of US$0.0001 per share; nil authorized, issued and outstanding as of December 31, 2024; and 1,062,500 shares authorized, issued and outstanding as of December 31, 2025) Shareholders' equity (deficit): Shareholders' equity: Common Stock, Value, Issued Ordinary shares (par value of US$0.0001 per share; 640,000,000 shares authorized, and 58,886,944 shares issued and outstanding as of December 31, 2024; and 640,000,000 shares authorized, and 59,231,993 shares issued and outstanding as of December 31, 2025) Additional Paid in Capital. Additional paid-in capital Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Retained Earnings (Accumulated Deficit) Accumulated deficit Stockholders' Equity Attributable to Parent Balance at the end Balance at the beginning Total shareholders' equity Liabilities and Equity TOTAL LIABILITIES, MEZZANINE EQUITY AND SHAREHOLDERS' EQUITY Temporary Equity, Par or Stated Value Per Share Convertible redeemable preferred shares, par value Temporary Equity, Shares Authorized Convertible redeemable preferred shares, shares authorized Temporary Equity, Shares Issued Convertible redeemable preferred shares, shares issued Temporary Equity, Shares Outstanding Convertible redeemable preferred shares, shares outstanding Common Stock, Par or Stated Value Per Share Ordinary shares, par value Common Stock, Shares Authorized Ordinary shares, shares authorized Common Stock, Shares, Issued Ordinary shares, shares issued Common Stock, Shares, Outstanding Ordinary shares, shares outstanding CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS Cost of Revenue [Abstract] Revenue Revenue from Contract with Customer, Excluding Assessed Tax Revenues Licensing and collaboration revenue Operating expenses and income Research and Development Expense Research and development expenses Research and development expenses - Including external related parties Research and Development Expense, Total General and Administrative Expense Administrative expenses Other Operating Income Other operating income, net Operating Income (Loss) Loss from operations Investment Income, Interest Interest and investment income Interest Expense Interest expense Other Nonoperating Income Other income, net Foreign Currency Transaction Gain (Loss), before Tax Foreign exchange loss (gain), net Foreign exchange gain (loss), net Fair Value Adjustment of Warrants Change in fair value of warrant liabilities Change in fair value of warrant liabilities Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Loss before income tax Loss before income tax Income Tax Expense (Benefit) Income tax benefit (expense) Income tax expense (benefit) Provision for income taxes Net loss attributable to Adagene Inc.'s shareholders Net loss Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income (loss) Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Foreign currency translation adjustments, net of nil tax Other comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Total comprehensive loss attributable to Adagene Inc.'s shareholders Net Income (Loss) Available to Common Stockholders, Basic Net loss attributable to ordinary shareholders Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted average number of ordinary shares used in per share calculation: Denominator: Weighted Average Number of Shares Outstanding, Basic Basic (in shares) Weighted average number of ordinary shares outstanding-basic (in shares) Weighted Average Number of Shares Outstanding, Diluted Diluted (in shares) Weighted average number of ordinary shares outstanding-diluted (in shares) NET LOSS PER SHARE Net loss per ordinary share Earnings Per Share, Basic Basic (in dollars per share) Net Loss per share-basic Earnings Per Share, Diluted Diluted (in dollars per share) Net Loss per share- diluted Related Party [Axis] Related Party [Domain] Related Party [Member] Related party Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Parent Foreign currency translation adjustments, tax CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY Equity Components [Axis] Equity Component [Domain] Treasury Stock, Common [Member] Treasury shares Additional Paid-in Capital [Member] Additional paid-in capital AOCI Attributable to Parent [Member] Accumulated other comprehensive loss Retained Earnings [Member] Accumulated deficit Increase (Decrease) in Stockholders' Equity [Roll Forward] CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY Shares, Issued Balance at the end (in shares) Balance at the beginning (in shares) Treasury Stock, Shares Balance at the end, Treasury shares (in shares) Balance at the beginning, Treasury shares (in shares) Treasury shares Stock Issued During Period, Value, Stock Options Exercised Exercise of share options (Note 9) Total amount exercise price Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercised (in shares) Exercise of share options (Note 9) (in shares) Shares issued upon exercise of share options (in shares) Amount of stock issued under performance incentive plan. Stock Issued During Period, Value, Performance Incentive Plan Issuance of ordinary shares under performance incentive plan (Note 9) Number of shares issued under performance incentive plan. Stock Issued During Period, Shares, Performance Incentive Plan Issuance of ordinary shares under performance incentive plan (Note 9) (in shares) Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Share-based compensation (Note 9) Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Share-based compensation (Note 9) (in shares) Stock Issued During Period, Value, New Issues Issuance of ordinary shares upon the at-the-market equity offering (the "ATM Offering"), net of issuance cost (Note 19) Stock Issued During Period, Shares, New Issues Shares issued (in shares) Issuance of ordinary shares upon the at-the-market equity offering (the "ATM Offering"), net of issuance cost (Note 19) (in shares) Treasury Stock, Retired, Cost Method, Amount Retirement of treasury shares (Note 18) Treasury Stock, Shares, Retired Retirement of treasury shares (Note 18) (in shares) Shares retired (in shares) CONSOLIDATED STATEMENTS OF CASH FLOWS Cash flows from operating activities: Cash flows from operating activities: Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net loss Adjustments to reconcile net loss to net cash used in operating activities: Adjustments to reconcile net loss to net cash used in operating activities: Amount of income or gain included in net income that result in no cash inflow (outflow) from short term investments. Noncash Investment Income Income related to short-term investments Depreciation, Depletion and Amortization Depreciation and amortization The amount of loss on disposal of property, equipment, software and operating lease right-of-use asset. Gain Loss On Sale Of Property Plant Equipment and Operating Lease Right Of Use Asset Net loss on disposal of property, equipment, software and operating lease right-of-use asset Share-based Payment Arrangement, Noncash Expense Share-based compensation Amount of amortization expense for right-of-use asset and interest of lease liabilities from operating lease. Operating Lease, Right-of-Use Asset and Interest of Lease Liabilities, Amortization Expense Amortization of right-of use assets and interest of lease liabilities Amount of administrative expense in exchange of warrant issuance. Administrative Expense In Exchange Of Warrant Issuance Administrative expense in exchange of warrant issuance Changes in operating assets and liabilities: Changes in operating assets and liabilities: Increase (Decrease) in Prepaid Expense and Other Assets Prepayments and other current assets Increase (Decrease) in Due from Related Parties Amount due from related parties Increase (Decrease) in Other Noncurrent Assets Other non-current assets Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Contract with Customer, Liability Contract liabilities Increase (Decrease) in Due to Related Parties Amount due to related parties Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Accruals and other current liabilities Increase (Decrease) in Operating Lease Liability Lease liabilities Increase (Decrease) in Income Taxes Payable Income tax payable Increase (Decrease) in Other Noncurrent Liabilities Other non-current liabilities Net Cash Provided by (Used in) Operating Activities Net cash used in operating activities Cash flows from investing activities: Cash flows from investing activities: Payments to Acquire Short-term Investments Placement of short-term investments Proceeds from Sale of Short-term Investments Withdrawal of short-term investments Proceeds from Sale of Productive Assets Proceeds from disposal of property, equipment and software Payments to Acquire Productive Assets Purchase of property, equipment and software Net Cash Provided by (Used in) Investing Activities Net cash generated from (used in) investing activities Cash flows from financing activities: Cash flows from financing activities: Proceeds from Issuance of Debt Proceeds from borrowings Proceeds from Issuance of Redeemable Convertible Preferred Stock Net consideration Proceeds from issuance of Series A non-voting contingently redeemable convertible preferred shares, net of issuance costs Proceeds from Stock Options Exercised Proceeds from exercise of share options Proceeds from Issuance of Common Stock Proceeds from the ATM Offering, net of issuance costs Repayments of Debt Repayment of borrowings Amount repaid Payments of Stock Issuance Costs Payment of the ATM Offering setup costs Net Cash Provided by (Used in) Financing Activities Net cash generated from (used in) financing activities Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Effect of exchange rate on cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Net decrease in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents at the end of year Cash and cash equivalents at the beginning of year Supplemental cash flow disclosures: Supplemental cash flow disclosures: Interest Paid, Excluding Capitalized Interest, Operating Activities Interest paid Income Taxes Paid, Net Income tax paid Operating Lease, Payments Cash paid for fixed operating lease costs included in the measurement of lease obligations in operating activities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Right-of-use assets obtained in exchange for operating lease obligations Non-cash activities: Non-cash activities: