August 20, 2019

Maria Maccecchini, Ph.D.
President and Chief Executive Officer
Annovis Bio, Inc.
1055 Westlakes Drive, Suite 300
Berwyn, PA 19312

       Re: Annovis Bio, Inc.
           Amendment No. 1 to Registration Statement on Form S-1
           Filed August 8, 2019
           File No. 333-232529

Dear Dr. Maccecchini:

      We have reviewed your amended registration statement and have the
following
comments. In some of our comments, we may ask you to provide us with
information so we
may better understand your disclosure.

       Please respond to this letter by amending your registration statement
and providing the
requested information. If you do not believe our comments apply to your facts
and
circumstances or do not believe an amendment is appropriate, please tell us why
in your
response.

       After reviewing any amendment to your registration statement and the
information you
provide in response to these comments, we may have additional comments. Unless
we note
otherwise, our references to prior comments are to comments in our July 15,
2019 letter.

Amendment No. 1 to Registration Statement on Form S-1

Prospectus Summary
Our Company, page 1

1.     We note your revisions in response to our prior comment 1. Please
further revise your
       disclosure to provide appropriate context for various conclusions as to
the performance
       of your product candidates and revise and/or remove any statements that
imply efficacy.
       As one example, we note that your goal is for your Phase 2a studies to
demonstrate that
       ANVS-401 "normalizes" CSF levels and inflammatory markers, "as
previously seen in
       preclinical studies." Please remove the statement that your preclinical
studies
       "normalized" CSF levels and inflammatory markers and balance your
disclosure by
       discussing the results of your study of ANVS-401 in MCI patients, where
the reduction of
 Maria Maccecchini, Ph.D.
FirstName LastNameMaria Maccecchini, Ph.D.
Annovis Bio, Inc.
Comapany NameAnnovis Bio, Inc.
August 20, 2019
August 20, 2019 Page 2
Page 2
FirstName LastName
         only two inflammatory markers was statistically significant. In
addition, we note
         conclusory statements throughout such as ANVS-301 "made the old rats
cognitively
         equivalent to young rats," and ANVS-401 restored axonal transport,
memory and
         learning, and colonic motility. Please remove these statements and
instead discuss the
         specific results of your studies in quantitative terms so that an
investor will understand the
         significance of your results.
Pipeline, page 2

2.       We note your response to our prior comment 6 and re-issue in part.
Please provide us
         your analysis as to why you believe these programs are material enough
to be included in
         your pipeline table.
Pathway Engagement, page 6

3.       We note your disclosure that the nerve cells' stain signal was the
same in ANVS-405
         treated rats as for sham treated animals. Please quantify the
percentage of nerve cells that
         died in both. Please also explain what is meant by "sham treated
animals."
Use of Proceeds, page 60

4.       Please revise your disclosure to state how far you expect the proceeds
of the offering will
         allow you to proceed in the development of ANVS-405 and ANVS-301.
Please also
         disclose the sources of additional funding required to develop each of
your product
         candidates through to commercialization. Refer to Instruction 3 to
Item 504 of Regulation
         S-K.
Management's Discussion and Analysis
Overview
Company Overview, page 70

5.       We note your response to our prior comment 4. Please delete the
language stating that
         successful completion of the AD and PD study will "validate the
target."
Business, page 82

6.       We note several references to statistical significance and p-values in
this section. Please
         explain how "p-value" is used to measure statistical significance and
the relevance of
         statistical significance to the FDA's evidentiary standards for drug
approval.
7.       We note your disclosure on page 94 that the level of neurotoxic
proteins in the four
         patients decreased by between 35% and 65%, and that these levels were
"similar" to the
         levels measured in four healthy volunteers. Given the limited number
of participants in
         the study, please disclose the specific reduction in neurotoxic
proteins for each patient,
         and the levels measured for each of the four participants without mild
cognitive
         impairment, including the comparison made between each patient and
 Maria Maccecchini, Ph.D.
Annovis Bio, Inc.
August 20, 2019
Page 3
      volunteer supporting your conclusion that the levels were similar. In
addition, we note
      that the y axis for the graphs on page 94 states shows the percent of
untreated MCI group,
      but it is not clear how this relates to the data shown for "MCI 11 Day"
and "Healthy
      Volunteer." Please clearly present the results for each of the four
patients as compared to
      each of the four volunteers. Please also balance your discussion of these
results
      throughout the prospectus to provide quantitative results instead of
saying that the levels
      were "back to the levels measured in healthy volunteers" and indicate
that the study
      included only four patients and four volunteers without mild cognitive
impairment. Please
      also tell us if there is a generally accepted level of neurotoxic
proteins in healthy adults
      such that you can assume the four volunteers are representative of the
population
      generally.
       You may contact Mark Brunhofer at 202-551-3638 or Lisa Vanjoske at
202-551-3614 if
you have questions regarding comments on the financial statements and related
matters. Please
contact Ada D. Sarmento at 202-551-3798 or Erin Jaskot at 202-551-3442 with any
other
questions.



                                                           Sincerely,
FirstName LastNameMaria Maccecchini, Ph.D.
                                                           Division of
Corporation Finance
Comapany NameAnnovis Bio, Inc.
                                                           Office of Healthcare
& Insurance
August 20, 2019 Page 3
cc:       John W. Kauffman
FirstName LastName