SEC Filing Document

Company: Synergy CHC Corp.
Ticker: SNYR
CIK: 1562733
Filing Type: S-3
Document Type: EX-5.1
Date Filed: 2025-11-26
Accession Number: 0001213900-25-115554
Exchange: Nasdaq
SIC Code: 2833
SIC Description: Medicinal Chemicals & Botanical Products
URL: https://www.sec.gov/Archives/edgar/data/1562733/000121390025115554/ea026681201ex5-1_synergy.htm

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by any court or governmental body having jurisdiction over the Company or any of its property; (d) such shares have been issued and delivered against payment of the purchase price therefor in an amount in excess of the par value thereof, in accordance with the applicable definitive purchase, underwriting or similar agreement, and as contemplated by the Registration Statement, the Prospectus and the related Prospectus Supplement; and (e) to the extent such shares of Preferred Stock are to be issued upon the conversion, exchange or exercise of any Preferred Stock, Warrants or Debt Securities, when such shares have been duly issued and delivered as contemplated by the terms of the applicable Preferred Stock, the Warrant Agreement relating to such Warrants or the Indenture relating to such Debt Securities, respectively, the shares of Preferred Stock will be validly issued, fully paid and nonassessable. Synergy CHC Corp. November 26, 2025 Page 3

4.	With respect to Warrants, when: (a) the issuance and the terms of the sale of the Warrants have been duly authorized by the Board; (b) the terms of the Warrants and of their issuance and sale have been duly established so as not to violate any applicable law or result in a default under or breach of any agreement or instrument binding upon the Company and comply with any requirement or restriction imposed by any court or governmental body having jurisdiction over the Company or any of its property; (c) the Warrants and the applicable Warrant Agreement relating to the Warrants, if any, have been duly executed and countersigned and the Warrants have been issued and sold in accordance with the applicable definitive purchase, underwriting or similar agreement, as contemplated by the Registration Statement, the Prospectus and the related Prospectus Supplement; and (d) the Company has received the applicable consideration for the Warrants as contemplated by the Registration Statement, the Prospectus and the related Prospectus Supplement(s), the Warrants will constitute valid and binding obligations of the Company.

5.	With respect to Debt Securities, when: (a) the issuance and the terms of the sale of the Debt Securities have been duly authorized by the Board; (b) the terms of the Debt Securities and of their issuance and sale have been duly established so as not to violate any applicable law or result in a default under or breach of any agreement or instrument binding upon the Company and comply with any requirement or restriction imposed by any court or governmental body having jurisdiction over the Company or any of its property; (c) the Debt Securities and the applicable Indenture relating to the Debt Securities have been duly executed and countersigned and in the case of the Indenture, duly authenticated by the Trustee, and the Debt Securities have been issued and sold as contemplated by the Registration Statement, the Prospectus and the related Prospectus Supplement; and (d) the Company has received the applicable consideration for the Debt Securities as contemplated by the Registration Statement, the Prospectus and the related Prospectus Supplement(s), the Debt Securities will constitute valid and binding obligations of the Company.

6.	With respect to the Subscription Rights, when: (a) the issuance and the terms of the sale of the Subscription Rights have been duly authorized by the Board; (b) the terms of the Subscription Rights and of their issuance and sale have been duly established so as not to violate any applicable law or result in a default under or breach of any agreement or instrument binding upon the Company and comply with any requirement or restriction imposed by any court or governmental body having jurisdiction over the Company or any of its property; and (c) the agreement(s) relating to the Subscription Rights have been duly authorized and validly executed and delivered by the Company, then the Subscription Rights will be valid and binding obligations of the Company, enforceable against the Company in accordance with their terms.

7.	With respect to Units, when: (a) the issuance and the terms of the sale of the Units have been duly authorized by the Board; (b) the terms of the Units and of their issuance and sale have been duly established so as not to violate any applicable law or result in a default under or breach of any agreement or instrument binding upon the Company and comply with any requirement or restriction imposed by any court or governmental body having jurisdiction over the Company or any of its property; (c) the Unit Agreement and the Units have been duly executed and countersigned and the Units have been issued and sold in accordance with the applicable Unit Agreement, as contemplated by the Registration Statement, the Prospectus and the related Prospectus Supplement; and (d) the Company has received the applicable consideration for the Units as contemplated by the Registration Statement, the Prospectus and the related Prospectus Supplement(s), the Units will constitute valid and binding obligations of the Company.

In rendering the opinions
set forth above, we have assumed that: (i) the Registration Statement (and any applicable post-effective amendment thereto) will have
become effective under the Securities Act, a Prospectus Supplement will have been prepared and filed with the Commission describing the
Securities offered thereby and such Securities will have been issued and sold in accordance with the terms of such Prospectus Supplement
and in compliance with all applicable laws; and (ii) a definitive purchase, underwriting or similar agreement with respect to such Securities
(if applicable) will have been duly authorized, executed and delivered by the Company and the other parties thereto; (iii) the Securities
will be duly authorized by all necessary corporate action by the Company and any agreement pursuant to which such Securities may be issued
will be duly authorized, executed and delivered by the Company and the other parties thereto; (iv) the Company will remain duly organized,
validly existing and in good standing under applicable state law; and (v) the Company has reserved a sufficient number of shares of its
duly authorized, but unissued, Common Stock and Preferred Stock as is necessary to provide for the issuance of the shares of Common Stock
and Preferred Stock pursuant to the Registration Statement.

Synergy CHC Corp.

November 26, 2025

Page 4

The opinions set forth above
are subject to the following exceptions, limitations and qualifications: (i) the effect of bankruptcy, insolvency, reorganization, fraudulent
conveyance, moratorium or other similar laws now or hereafter in effect relating to or affecting the rights and remedies of creditors;
(ii) the effect of general principles of equity, including without limitation, concepts of materiality, reasonableness, good faith and
fair dealing and the possible unavailability of specific performance or injunctive relief, regardless of whether enforcement is considered
in a proceeding in equity or at law, and the discretion of the court before which any proceeding therefor may be brought; and (iii) the
unenforceability under certain circumstances under law or court decisions of provisions providing for the indemnification of, or contribution
to, a party with respect to liability where such indemnification or contribution is contrary to public policy. We express no opinion concerning
the enforceability of any waiver of rights or defenses with respect to stay, extension or usury laws. Our opinion expressed herein is
also subject to the qualification that no term or provision shall be included in any certificate of designation relating to any series
of the Preferred Stock, Warrant Agreement, Indenture, Unit Agreement or any other agreement or instrument pursuant to which any of the
Securities are to be issued that would affect the validity of such opinion.

Our opinion expressed herein
is limited to the federal laws of the United States, the laws of the State of New York and Chapter 78 of the Nevada Revised Statutes.
The opinions expressed herein are based upon such laws as in effect on the date hereof and as of the effective date of the Registration
Statement. We do not express any opinion as to the laws of any other jurisdiction. We assume no obligation update, revise or supplement
this opinion in the event of future changes in such laws, the interpretations thereof or in the facts or circumstances on which this opinion
is based.

We hereby consent to the inclusion
of this opinion as Exhibit 5.1 to the Registration Statement and to the references to our firm therein and in the Prospectus, ATM Prospectus
and in any Prospectus Supplement under the caption “Legal Matters.” In giving our consent, we do not admit that we are in
the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations thereunder.

Very truly yours,

/s/ Nelson Mullins Riley & Scarborough LLP