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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001432333-10-000005.txt : 20100303
<SEC-HEADER>0001432333-10-000005.hdr.sgml : 20100303
<ACCEPTANCE-DATETIME>20100302201712
ACCESSION NUMBER:		0001432333-10-000005
CONFORMED SUBMISSION TYPE:	D/A
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 504(b)(1) (not (i), (ii) or (iii))
ITEM INFORMATION:		Rule 506
ITEM INFORMATION:		Securities Act Section 4(6)
FILED AS OF DATE:		20100303
DATE AS OF CHANGE:		20100302
EFFECTIVENESS DATE:		20100303

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			REDWOOD BIOSCIENCE INC
		CENTRAL INDEX KEY:			0001432333
		IRS NUMBER:				262250816
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-116945
		FILM NUMBER:		10651279

	BUSINESS ADDRESS:	
		STREET 1:		863 MITTEN ROAD, SUITE 101
		CITY:			BURLINGAME
		STATE:			CA
		ZIP:			94010
		BUSINESS PHONE:		650-777-5264

	MAIL ADDRESS:	
		STREET 1:		863 MITTEN ROAD, SUITE 101
		CITY:			BURLINGAME
		STATE:			CA
		ZIP:			94010
</SEC-HEADER>
<DOCUMENT>
<TYPE>D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0603</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001432333</cik>
        <entityName>REDWOOD BIOSCIENCE INC</entityName>
        <issuerAddress>
            <street1>863 MITTEN ROAD, SUITE 101</street1>
            <city>BURLINGAME</city>
            <stateOrCountry>CA</stateOrCountry>
            <zipCode>94010</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>650-777-5264</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2008</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>David</firstName>
                <middleName>Ian</middleName>
                <lastName>Rabuka</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>863 Mitten Road, Suite 101</street1>
                <city>Burlingame</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94010</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
                <relationship>Promoter</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Michael</firstName>
                <lastName>Blank</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>863 Mitten Road, Suite 101</street1>
                <city>Burlingame</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94010</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
                <relationship>Promoter</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Paul</firstName>
                <lastName>Socolow</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>863 Mitten Road, Suite 101</street1>
                <city>Burlingame</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94010</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Karen</firstName>
                <lastName>Boezi</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>863 Mitten Road, Suite 101</street1>
                <city>Burlingame</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94010</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Carolyn</firstName>
                <lastName>Bertozzi</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>863 Mitten Road, Suite 101</street1>
                <city>Burlingame</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>94010</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Promoter</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Biotechnology</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>No Revenues</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>04</item>
            <item>06</item>
            <item>46</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>9999999997-08-048699</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2008-09-30</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isDebtType>true</isDebtType>
            <isOptionToAcquireType>true</isOptionToAcquireType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>450000</totalOfferingAmount>
            <totalAmountSold>450000</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>4</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>REDWOOD BIOSCIENCE INC</issuerName>
                <signatureName>Michael Blank</signatureName>
                <nameOfSigner>Michael Blank</nameOfSigner>
                <signatureTitle>Secretary and Treasurer</signatureTitle>
                <signatureDate>2010-03-02</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
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</TEXT>
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</SEC-DOCUMENT>
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