AMENDMENT
      NO. 1 TO SELLING AGREEMENT

    


    THIS
      AMENDMENT NO. 1 TO SELLING AGREEMENT (this “Amendment”)
      is
      dated as of July 11, 2008, by and among Dr. Tattoff, Inc. (formerly Lifesciences
      Opportunities Incorporated), a Florida corporation located at 8500 Wilshire
      Boulevard, Suite 105, Beverly Hills, CA 90211 (the “Seller”),
      and
      Dawson James Securities, Inc., a Florida corporation located at 925 S. Federal
      Highway, 6th Floor, Boca Raton, FL 33432 (the “Selling
      Agent”).

     

    WHEREAS,
      the parties entered into that certain Amended and Restated Selling Agreement,
      dated March 31, 2008, by and among the Seller and Selling Agent, a copy of
      which
      is attached hereto as Exhibit
      A
      (the
“Agreement”).

     

    WHEREAS,
      the Seller and the Selling Agent wish to amend certain provisions of the
      Agreement as set forth herein; 

     

    NOW,
      THEREFORE, for and in consideration of the mutual promises and covenants other
      agreements contained in this Amendment, the Seller and the Selling Agent hereby
      agree to amend the Agreement as follows:

     

    1.  Defined
      Terms; Conflicting Documents.
      All
      capitalized terms used but not defined herein shall have the meaning set forth
      in the Agreement. In the event of any conflict between the Agreement and this
      Amendment, this Amendment shall prevail and govern.

     

    2. Amendment
      to Certain References.
      As a
      result of the Seller’s recent change in legal corporate name, all references to
“Lifesciences Opportunities Incorporated” throughout the Agreement shall be
      deleted in their entirety and replaced with “Dr. Tattoff, Inc.”

     

    3. Amendment
      to the Introductory Paragraphs.
      The
      second paragraph of the Introductory Paragraphs of the Agreement is hereby
      deleted in its entirety and replaced with the following paragraph:

     

    The
      Seller proposes to offer and sell (the “Offering”), to selected investors, upon
      the terms set forth herein and in the Subscription Package dated July 9, 2008
      (which collectively, together with the attachments and exhibits thereto, is
      referred to as the “Offering Document”), a copy of which has been delivered to
      you, up to 6,000 Units ($600,000) (“Maximum Offering Amount”), on a best-efforts
      basis. There is no minimum amount required for an initial closing. Each Unit
      consists of a convertible debenture in the principal amount of $1,000 (the
      “Debentures”) and one thousand (1,000) shares (the “Additional Shares”) of the
      Company’s common stock, par value $.0001 (“Common Stock”) (the Units being
      offered, including the securities underlying such Units, are sometimes referred
      to herein as the “Offered Securities”).”

     

    
      
         

      

      
         

        
          

        

      

      
         

      

       

    

    4. Amendment
      to Section 1.2.
      The
      last sentence of Section 1.2 of the Agreement is hereby deleted in its entirety
      and replaced with the following sentence:

     

    “A
      closing (the “First Closing”) will occur as soon as possible after the first
      subscription has been accepted by the Seller. After the First Closing, one
      or
      more subsequent closings (the “Additional Closings”) will occur thereafter on
      such dates as mutually determined by the Seller and the Selling Agent, but
      in no
      event later than ten (10) days after the end of the Offering Period. (The First
      Closing and any Additional Closing shall each be referred to herein as a
“Closing”).”

     

    5. Amendment
      to Section 1.3.
      Section
      1.3 of the Agreement is hereby deleted in its entirety and replaced with the
      following:

     

    “1.3 For
      purposes hereof, the Offered Securities shall not be deemed to have been sold
      unless (x) subscription agreements, completed and fully executed by subscribers
      who are accredited investors have been received covering the Offered Securities,
      and (y) all checks, drafts and wire transfers submitted by such subscribers
      in
      payment of the purchase price of such Offered Securities have been received
      by
      the Escrow Agent and have cleared so that there are “good funds” in the Escrow
      Account at least equal to the aggregate purchase price of the Offered
      Securities.”

     

    6. Ratification. Except
      as
      specifically herein amended and modified, all terms and conditions of the
      Agreement remain unchanged and in full force and effect. 

     

    7. Incorporation
      of Changes. The
      parties hereto covenant and agree that the amendments contemplated in this
      Amendment shall be deemed to be incorporated by reference into and made a part
      of the Agreement. 

     

    [Signature
      Page Follows]

     

    
      
         

      

      
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    SIGNATURE
      PAGE TO AMENDMENT NO. 1 TO SELLING AGREEMENT


    


    Please
      acknowledge your acceptance of the foregoing Amendment by signing and returning
      a copy to the undersigned whereupon it shall become a binding agreement between
      us.

    


    
      	 	
              DR.
                TATTOFF, INC. 

            
	 	
              By:

            	
              /s/
                John Keefe

            
	 	 	
              Name:
                John Keefe

            
	 	 	
              Title:
                Chief Executive Officer

            
	 	 
	 	
              DAWSON
                JAMES SECURITIES, INC.

            
	 	
              By:

            	
              /s/
                Albert J. Poliak 

            
	 	 	
              Name:
                Albert J. Poliak 

            
	 	 	
              Title:
                President

            


    

    


    
      
         

      

      
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    Exhibit
      A

    


    Selling
      Agreement

     

    
      
         

      

      
        4