<SEC-DOCUMENT>0001615219-19-000010-index.html : 20190306
<SEC-HEADER>0001615219-19-000010.hdr.sgml : 20190306
<ACCEPTANCE-DATETIME>20190306170721
ACCESSION NUMBER:		0001615219-19-000010
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20190306
DATE AS OF CHANGE:		20190306
EFFECTIVENESS DATE:		20190306

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Flex Pharma, Inc.
		CENTRAL INDEX KEY:			0001615219
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				465087339
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-230104
		FILM NUMBER:		19663327

	BUSINESS ADDRESS:	
		STREET 1:		800 BOYLSTON STREET
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
		BUSINESS PHONE:		617-874-1821

	MAIL ADDRESS:	
		STREET 1:		800 BOYLSTON STREET
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>flks20190306forms-8.htm
<DESCRIPTION>S-8
<TEXT>
Document 1 - file: flks20190306forms-8.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>flks20190306s-8exx51.htm
<DESCRIPTION>EXHIBIT 5.1
<TEXT>
Document 2 - file: flks20190306s-8exx51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>flks20190306s-8exx231.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
Document 3 - file: flks20190306s-8exx231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>cooleya03.jpg
<TEXT>
Document 4 - file: cooleya03.jpg

</DOCUMENT>
</SEC-DOCUMENT>