FIRSTLINE AND FIRSTLINE II

FLEXIBLE PREMIUM VARIABLE UNIVERSAL LIFE INSURANCE POLICIES

issued by

Security Life of Denver Insurance Company

and its

Security Life Separate Account L1

Supplement dated June 27, 2003, to the Prospectus dated May 1, 2003

This supplement amends certain information contained in the prospectus dated May 1, 2003. Please read it carefully and keep it with your prospectus for future reference.

______________________________________________________________________

Information about the American Funds Insurance Series - Growth and International Funds in Appendix B is deleted in its entirety and replaced with the following:

Fund Name	Investment Adviser/ Subadviser	Investment Objective	Total Annual Fund Expenses
American Funds Insurance Series - Growth Fund - Class 2	Investment Adviser: Capital Research and Management Company	Seeks growth of capital by investing primarily in U.S. common stocks.	Gross: 0.65% Net: 0.65%
American Funds Insurance Series - International Fund - Class 2	Investment Adviser: Capital Research and Management Company	Seeks growth of capital over time by investing primarily in common stocks of companies based outside the United States.	Gross: 0.88% Net: 0.88%

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