CONVERTIBLE
PROMISSORY NOTE


THIS
NOTE AND ANY SHARES OF STOCK ISSUABLE UPON THE CONVERSION HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES- ACT OF 1933, AS
AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THIS NOTE AND ANY SHARES OF STOCK ISSUABLE UPON THE CONVERSION HEREOF MAY NOT BE
SOLD, OFFERED FOR SALE, MORTGAGED, PLEDGED, HYPOTHECATED OR OTHERWISE TRANSFERRED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION
STATEMENT COVERING THIS NOTE OR SUCH SHARES UNDER SAID ACT AND APPLICABLE STATE SECURITIES LAWS OR THE DELIVERY OF AN OPINION
OF COUNSEL THAT SUCH REGISTRATION IS NOT REQUIRED. THIS NOTE IS ALSO SUBJECT TO RESTRICTIONS ON TRANSFER. -


REGEN
BLOPHARMA, INC.


Issue
Date:Principal Amount:


1.
Terms. For value received, the Regen BioPharma, Inc., a Nevada corporation (the "Company") hereby absolutely and
unconditionally promises to pay to the order of _________


__________________________________(the
"Lender") ON DEMAND AT

ANY TIME AFTER May 9th, 2020 (the "Maturity Date"), the principal amount of one
hundred


Thousand
Dollars ($100,000) and interest on the whole amount of said principalsum outstanding

and remaining from time to time unpaid (the "Note"), commencing from the date
hereof and continuing until payment in full of this Note or conversion as hereinafter provided, at an annual rate equal to ten
percent (10%) simple interest. Interest shall be payable quarterly upon demand or upon conversion pursuant to Section 2 hereunder.
Interest shall be computed on the basis of the actual number of days elapsed divided by 365. Principal and interest shall be payable
in lawful money of the United States of America, at the principal place of business of the Lender or at such other place as the
Lender may have designated from time to time in writing to the Company.


2.
Conversion.


2.1
Conversion Right. The Lender shall have the right from time to time to convert all or a part of the outstanding and unpaid
principal amount of this Note into fully paid and non-. assessable shares of Common Stock, as such Common Stock exists on the
Issue Date, or any shares of capital stock or other securities of the Company into which such Common Stock shall hereafter be
changed or reclassified at the conversion price (the "Conversion Price") determined as provided herein (a "Conversion").


The
Lender shall have the right to convert one hundred percent (100%) of the Principal Amount and any accrued interest commencing
as of the date which is the earlier of:


(i)
One day subsequent to the execution of an agreement to a transaction whose completion would
result in a "Change of Control" of the Company. For purposes of this Note,
a Change of Control shall be defined as any transaction or series of transactions,
whether by merger, sale of substantially all of the assets, or sale or transfer of more than fifty percent (50%) of the outstanding
stock of the relevant entity in which the members of the Board of Directors immediately
preceding the closing of the Change of Control transaction no longer constitute a majority of the Board of Directors of the surviving
entity following the closing of such transaction.




(ii)
One day subsequent to the commencement, in compliance with applicable law, of a broad solicitation by a third party to purchase
a majority percentage of the Company's outstanding equity securities for a limited period of time contingent on shareholders of
the Company tendering a fixed number of their equity securities ("Tender Offer").




(iii)
That date which is twenty four (24) months subsequent to the date of execution of this Note.


The
number of shares of Common Stock to be issued upon each conversion of this Note shall be determined by dividing the principal
amount of this Note to be converted (the "Conversion Amount") by the applicable Conversion Price as defined in this
Section 2 then in effect on the date specified in the notice of conversion, in the form attached hereto as Exhibit A (the "Notice
of Conversion"), delivered to the Company by the Lender on such conversion date (the "Conversion Date").


2.2
Conversion Price. The "Conversion Price" shall be defined as the lower $0.025 per share, or, a 75% discount to the
closing price of the Common Stock on the Over-the-Counter Bulletin Board on the trading day immediately prior to the date that
a Notice of Conversion is submitted pursuant to Section 2.3-. or, if the Over-the-Counter Bulletin Board is not the principal
trading market for such security, the closing price of such security on the principal securities exchange or trading market where
such security is listed or traded on the trading day immediately prior to the date that a Notice of Conversion is submitted pursuant
to Section 2.3. 01, if no closing bid price of such security is available in any of the foregoing manners, the average of the
closing bid prices of any market makers for such security that are listed in the "pink sheets" by the National Quotation
Bureau, Inc. on the trading day immediately prior to the date that a Notice of Conversion is submitted pursuant to Section 2.3.


2.3
Method of Conversion. Subject to Section 2.1, this Note may be converted by the Lender by submitting to the Company a Notice
of Conversion by facsimile, e-mail or other reasonable means of communication dispatched on the Conversion Date prior to 5:00
p.m., New York, New York time. The Lender shall not be required to physically surrender this Note to the Company unless the entire
unpaid principal amount of this Note is so converted. The Lender and the Company shall maintain records showing the principal
amount so converted and the dates of such conversions so as not to require physical surrender of this Note upon each such conversion.
In the event of any dispute or discrepancy, such records of the Company shall, prima facie, be controlling and determinative in
the absence of manifest error. Notwithstanding the foregoing, if any portion of this Note is converted as aforesaid, the Lender
may not transfer this Note unless the Lender first physically surrenders this Note to the Company, whereupon the Company will
forthwith issue and deliver
upon the order of the Lender a new Note of like tenor, registered -as the Lender (upon payment by the Lender of any applicable
transfer taxes) may request, representing in the aggregate the remaining unpaid principal amount of this Note.


Upon
receipt by the Company from the Lender of a facsimile transmission, e-mail, or other reasonable means of communication of a Notice
of Conversion meeting the requirements for conversion, the Company shall issue and deliver or cause to be issued and delivered
to or upon the order of the Lender certificates for the Common Stock issuable upon such conversion within ten (10) business days
after such receipt. Upon receipt by the Company of a Notice of Conversion, the Lender shall be deemed to be the Lender of record
of the Common Stock issuable upon such conversion, the outstanding principal amount and the amount of accrued and unpaid interest
on this Note shall be reduced to reflect such conversion. All rights with respect to the portion of this Note being so converted
shall forthwith terminate except the right to receive the Common Stock or other securities as herein provided on such conversion.
In lieu of delivering physical certificates representing the Common Stock issuable upon conversion, provided the Company is participating
in the Depository Trust Company ("DTC") Fast Automated Securities Transfer ("FAST') program, upon request of the
Lender, the Company shall use its best efforts to cause its transfer agent to electronically transmit the Common Stock issuable
upon conversion to the Lender by crediting the account of Lender's Prime Broker with DTC through its Deposit Withdrawal Agent
Commission ("DWAC") system.


2.4
Concerning the Shares. The shares of -Common Stock issuable upon conversion of this Note may not be sold or transferred
unless (i) such shares are sold pursuant to an effective registration statement under the Act or (ii) the Company or its transfer
agent shall have been furnished with an opinion of counsel (which opinion shall be in form, substance and scope customary for
opinions of counsel in comparable transactions) to the effect that the shares to be sold or transferred may be sold or -transferred
pursuant to -an exemption from such registration -or (iii) such shares are sold or transferred pursuant to Rule 144 under the
Act (or a successor rule) ("Rule 144') or (iv) such shares are transferred to an "affiliate" (as defined in Rule
144) of the Company who agrees to sell or otherwise transfer the shares only in accordance with this Section 2.5 and who is an
Accredited Investor as the term Accredited Investor is defined in Rule 501 of Regulation D, promulgated under the Act.


Subject
to the removal provisions set forth below, until such time as the shares of Common Stock issuable upon conversion of this Note
have been registered under the Act or otherwise may be sold pursuant to Rule 144 without any restriction as to the number of securities
as of a particular date that can then be immediately sold, each certificate for shares of issuable upon conversion of this Note
that has not been so included in an effective registration statement or that has not been sold pursuant to an effective registration
statement or an exemption that permits removal of the legend, shall bear a legend substantially in the following form, as appropriate:


'NEITHER
THE ISSUANCE OR SALE OF THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAS -BEEN REGISTERED UNDER THE SECURITIES ACT'OF
1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED
(I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED,
OR (B) AN OPINION OF COUNSEL (WHICH COUNSEL SHALL BE SELECTED _BY THE LEN-DER), IN -A GENERALLY ACCEPTABLE FORM, THAT REGISTRATION
IS NOT REQUIRED UNDER SAID ACT."


The
legend set forth above shall be removed and the Company shall issue to the Lender a new certificate therefore free of any transfer
legend if (i) the Company or its transfer agent shall have received an opinion of counsel, in form, substance and scope customary
for opinions of counsel in comparable transactions, to the effect that a public sale or transfer of such Common Stock may be made
without registration under the Act and the shares are so sold or transferred, (ii) such Lender provides the Company or its transfer
agent with reasonable assurances that the Common Stock issuable upon conversion of this Note (to the extent such securities are
deemed to have' been acquired on the same date) can be sold pursuant to Rule 144 or (iii) in the case of the Common Stock issuable
upon conversion of this Note, such security is registered for sale by under an effective registration statement filed under the
Act or (iv) otherwise may be sold pursuant to Rule 144 without any restriction as to the number of securities as of a particular
date that can then be immediately sold.


2.5
Reverse Stock Splits. If the number of shares of-Common Stock outstanding at any time while this Note is outstanding is decreased
by a combination of the outstanding shares of Common Stock, then, following the record date of such combination, the Conversion
Price shall be appropriately increased so that the number of shares of Common Stock issuable on conversion hereof shall be decreased
in proportion to such decrease in outstanding shares.


2.6
Stock Dividends and Stock Splits. -If the Company, at any time while this Note is outstanding subdivides outstanding shares
of Common Stock into a larger number of shares then the Conversion price shall be multiplied by a fraction of which the numerator
shall be the number of shares of Common Stock (excluding any treasury shares of the Company)
outstanding immediately before such event and
of which the shall be the number of shares of Common Stock outstanding immediately after such event.


3.   
Payment.


WIRE
INSTRUCTIONS:


 


 


4.        
Prepayment. Notwithstanding
anything to the contrary contained herein, the Company shall have the right, exercisable on not less than ten (10) Trading Days
prior written notice to the Lender, to prepay the outstanding Note in part or in full, including outstanding principal and accrued
interest. Any notice of prepayment hereunder shall be delivered to the Lender at its registered addresses and shall state that
the Company is exercising its right to prepay
the Note and the date of prepayment, which shall be not more than ten (10) Trading Days from the date of the prepayment notice.
Upon receipt of a prepayment notice, Lender shall have the right, but not the obligation, to accelerate the conversion period
specified in Section 2.1 and convert that portion of the outstanding principal balance which is subject to prepayment to Common
Shares as provided for in Section 2.


5.
Warrant Coverage. In the event that that the Company exercises its right to prepay the note, or if the Lender chooses not to convert
the remaining amount of the note into Common Shares of the company, the Lender shall receive warrants equal to 10% of the Common
shares it would have received had the Lender converted the remaining amount of the Note into Common shares of the Company. The
warrants shall have a strike price of $0.025 per share. See Exhibit B (incorporated into this Note) for instructions on completing
the Exercise of Warrants document.


6.
Events of Default.


6.1
The following shall constitute events of default (individually an "Event of Default"):


(a)                
default in the payment, when due or payable, of an obligation to pay -interest or principal under this Note, which default
is not cured by payment in full of the amount due within thirty (30) days from the date that the Lender receives notice of the
occurrence of such default;


(b)     
filing of a petition
in bankruptcy or the commencement of any proceedings under any bankruptcy laws.by or against the Company, which filing or proceeding,
is not dismissed within ninety (90) days after the filing or commencement thereof; or


(c)       
failure of the Company to comply in any way
with the terms, covenants or conditions contained in this Note.


6.2
If an Event of Default shall occur and be continuing, the Lender may, at its option, declare this Note to be immediately due and
payable without further notice or demand, whereupon this Note shall become immediately due and payable without presentment, demand
or protest, all of which are hereby waived by the Company.


7.
Transfer of Note. This Note may not be transferred or assigned other than a transfer or assignment to an Affiliate of the Lender.
As used herein, the term "Affiliate" means an entity that directly, or indirectly through one or more intermediaries,
controls, or is controlled by, or is under common control with, the Lender.


8.
Certain Waivers. The Company hereby expressly and irrevocably waives presentment, demand, protest, notice of protest and any other
formalities of any kind.


9.
Amendment, Modification or Termination. This Note may only be modified, amended, or terminated (other than by payment
in full) by an agreement in writing signed by the Company and the Lender. No waiver of any
term, covenant or provision of this Note shall be effective unless given in writing by the Lender. 


 


10.
Governing Law. This Note and the obligations of the Company hereunder shall be governed by and interpreted and determined in accordance
with the laws of the State of California (excluding the laws and rules of law applicable to conflicts or choice of law).


IN
WITNESS WHEREOF, this Note has been duly executed on behalf of the undersigned on the day and in the year first above written.


	REGEN BIOPHARMA INC	 	 
	 	 	 
	/s/ David R. Koos	 	 
	David R. Koos, Chairman and CEO	 	 
	 	 	 
	5/25/2017	 	 


The
foregoing Convertible Promissory Note is hereby accepted and agreed to by the undersigned
on and as of the date first above written.


	 	 	05/25/2017
	 	 	Date