SYMBOLLON CORP, S-3/A, EX-23, 2000-07-18

SYMBOLLON CORP
S-3/A, EX-23, 2000-07-18
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)

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                                                              Exhibit 23.1

                        [Letterhead of BDO Seidman, LLP]

Consent of Independent Certified Public Accountants




Symbollon Corporation
Framingham, Massachusetts

We  hereby  consent  to  the   incorporation  by  reference  in  the  Prospectus
constituting a part of this  Registration  Statement of our report dated January
21,  2000,  relating  to  the  financial  statements  of  Symbollon  Corporation
appearing  in the  Company's  Annual  Report on Form  10-KSB  for the year ended
December 31, 1999.

We also  consent  to the  reference  to us under the  caption  "Experts"  in the
Prospectus.



                                                   BDO Seidman, LLP


Boston, Massachusetts
July 18, 2000