Drug & supplement interaction

Glycolic Acid + Doxycycline

Doxycycline brand names: Vibra-Tabs, Vibramycin, Doryx, Monodox, Doxycin, and others.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Glycolic Acid and Doxycycline in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the label for Doxycycline states a food rule worth keeping to, and the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Glycolic Acid and Doxycycline

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Doxycycline and Glycolic Acid in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

Worth understanding: our licensed dataset holds no drug-interaction record for Glycolic Acid at all — not against Doxycycline, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Glycolic Acid safety at a glance

Glycolic Acid overall Use caution Generally safe when applied topically as directed, but can irritate skin and increase sun sensitivity.
Pregnancy Likely Safe When used topically in appropriate concentrations . There is insufficient reliable information available about the safety of glycolic acid when used orally duri... Read the full pregnancy detail
Breastfeeding Likely Safe When used topically in appropriate concentrations . There is insufficient reliable information available about the safety of glycolic acid when used orally duri... Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Doxycycline and Glycolic Acid? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Glycolic Acid and Doxycycline May Share Several of the Same Side Effects

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do. 2 of them are worth acting on rather than waiting out — marked below.

  • Hives Worth acting on Additional detail

    Glycolic Acid

    “Topically, glycolic acid is generally well tolerated when used in concentrations at or below 10%. In general, products should be tested on a small area of skin before applying it to a larger area.

    Alpha hydroxy acids like glycolic acid can increase sensitivity to the sun and ultraviolet (UV) light. This can increase damage to the skin, and after long-term use, might increase the risk of skin cancer.”

    Glycolic Acid · Natural Medicines adverse-effect record, reported in acne.

    6 sources cited
    1. 952. Stiller MJ, Bartolone J, Stern R, et al. Topical 8% glycolic acid and 8% L-lactic acid creams for the treatment of photodamaged skin. A double-blind, vehicle-controlled clinical trial. Arch Dermatol 1996;132:631-6.
    2. 10101. Erbagci Z, Akcali C. Biweekly serial glycolic acid peels vs. long-term daily use of topical low-strength glycolic acid in the treatment of atrophic acne scars. Int J Dermatol 2000;39:789-94.. PubMed
    3. 10102. Javaheri SM, Handa S, Kaur I, Kumar B. Safety and efficacy of glycolic acid facial peel in Indian women and melasma. Int J Dermatol 2001;40:354-7.
    4. 106612. US Food and Drug Administration (FDA). Cosmetic Ingredients: Alpha Hydroxy Acids. August 2020. Available at: https://www.fda.gov/cosmetics/cosmetic-ingredients/alpha-hydroxy-acids. Accessed on October 19, 2021.
    5. 6080. Kurtzweil P. Alpha-hydroxy acids for skin care: Smooth sailing or rough seas? FDA 1999. Available at: /www.fda.gov/fdac/features/1998/298_ahas.html (Accessed 18 August 2000). DOI
    6. 92209. Baumann LS, Oresajo C, Yatskayer M, Dahl A, Figueras K. Comparison of clindamycin 1% and benzoyl peroxide 5% gel to a novel composition containing salicylic acid, capryloyl salicylic acid, HEPES, glycolic acid, citric acid, and dioic acid in the treatment

    Doxycycline

    Listed in the ADVERSE REACTIONS section of the FDA label for Doxycycline. Read the label on DailyMed ›

  • Bleeding or bruising Worth acting on Additional detail

    Glycolic Acid

    “Topically, glycolic acid is generally well tolerated.

    Most Common Adverse Effects:

    Topically: Mild irritation, sun sensitivity, and a tingling sensation.

    Serious Adverse Effects (Rare):

    Topically: Increased risk of skin cancer, skin damage, and transient hyperpigmentation.”

    Glycolic Acid · Natural Medicines adverse-effect record, reported in burns.

    Doxycycline

    Listed in the ADVERSE REACTIONS section of the FDA label for Doxycycline. Read the label on DailyMed ›

  • Sun sensitivity Additional detail

    Glycolic Acid

    Recorded for Glycolic Acid in the same Natural Medicines adverse-effect record shown under Bleeding or bruising above.

    Doxycycline

    Listed in the ADVERSE REACTIONS section of the FDA label for Doxycycline. Read the label on DailyMed ›

  • Swelling Additional detail

    Glycolic Acid

    Recorded for Glycolic Acid in the same Natural Medicines adverse-effect record shown under Bleeding or bruising above.

    Doxycycline

    Listed in the ADVERSE REACTIONS section of the FDA label for Doxycycline. Read the label on DailyMed ›

  • A skin rash Additional detail

    Glycolic Acid

    Recorded for Glycolic Acid in the same Natural Medicines adverse-effect record shown under Hives above.

    Doxycycline

    Listed in the ADVERSE REACTIONS section of the FDA label for Doxycycline. Read the label on DailyMed ›

Reported for Glycolic Acid but not commonly for Doxycycline: numbness or tingling, itching and acne.

Effects for Doxycycline come from the ADVERSE REACTIONS section of its FDA label; effects for Glycolic Acid come from the Natural Medicines adverse-effect record, quoted above. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Glycolic Acid in Pregnancy & Breastfeeding

Pregnancy And Lactation Likely Safe

When used topically in appropriate concentrations . There is insufficient reliable information available about the safety of glycolic acid when used orally during pregnancy and lactation; avoid using.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

How to take them

Some Doxycycline Products Have a Food Rule — Glycolic Acid Should Not Break It

At least one FDA label for a product containing Doxycycline says to take it on an empty stomach. Most supplements — Glycolic Acid included — are taken with a meal, so the easy mistake is swallowing both together at breakfast. Where that rule applies, keep Doxycycline on its own and move Glycolic Acid to a meal later in the day.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Doxycycline products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

2 DOSAGE AND ADMINISTRATION Take one Doxycycline capsule (40 mg) once daily in the morning on an empty stomach, preferably at least one hour prior to or two hours after meals.

From the Dosage and Administration section of the FDA label we read for Doxycycline — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

From our Q&A

Questions About Glycolic Acid or Doxycycline

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Glycolic Acid or Doxycycline, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Doxycycline

This page covers Glycolic Acid only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Doxycycline page lists 166 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Asarabacca (major), Beer (major), Oleander (major) and Siberian Cocklebur (major).

By severity: 7 major · 139 moderate · 20 minor.

From our pharmacist’s overview on the Doxycycline page

“St. John's wort is the supplement I would flag first for anyone on doxycycline (Vibramycin, Doryx), because it can speed the antibiotic out of the body and leave an infection undertreated.”

Reviewed by 2 · Jul 18, 2026

Open the Doxycycline interaction page

How much people look this up

Where Glycolic Acid and Doxycycline Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Glycolic Acid
Steady interest

#1,131 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Doxycycline
Top 5%

#41 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Glycolic Acid reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Glycolic Acid and Doxycycline records this page draws on were last updated July 10, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Supplement

About Glycolic Acid

What is Glycolic Acid?

  • Acne
  • Anti-aging and fine lines
  • Uneven skin tone and dark spots
  • Skin exfoliation
  • Rough or dry skin texture

Glycolic acid is a topical alpha-hydroxy acid (AHA) used mainly to exfoliate the skin, smooth texture, and improve appearance. It is not a dietary supplement you swallow—it is applied to the skin and is generally well tolerated, though it can cause irritation and sun sensitivity. Always follow product directions and use sunscreen, and talk to a pharmacist or dermatologist if you have sensitive skin.

Not applicable (a chemically produced or naturally sourced acid) · Topical creams, gels, serums, cleansers, chemical peels, and lotions

An interaction check asks whether these two react with each other — it does not ask whether Glycolic Acid is a good idea for someone in your situation. Here is what our Glycolic Acid record says about it on its own.

Glycolic Acid: dosing

There is no standard oral dose because glycolic acid is used on the skin, not taken by mouth. Over-the-counter products usually contain lower concentrations, while professional peels use much higher strengths under medical supervision.The best approach is to follow the directions on the product label and start slowly—for example, every other day—to see how your skin reacts before using it more often.

From our Glycolic Acid monograph — the full record covers uses, side effects and every documented interaction.

Read the full Glycolic Acid monograph & all interactions
Medication

About Doxycycline

What Is Doxycycline Used For?

Brand names: Vibra-Tabs, Vibramycin, Doryx, Monodox, Doxycin, Doxy, Doxylin, Doxy-D, Periostat, Doxycycline Injection, Oracea, Xyrosa

Doxycycline belongs to the tetracycline family of antibiotics. It's prescribed for many types of bacterial infections, including respiratory tract infections, sexually transmitted infections (STIs), tick-borne illnesses like Rocky Mountain spotted fever, and eye infections. It's also used to help prevent malaria and, in some cases, as a helper treatment for severe acne.

In situations where penicillin-type antibiotics can't be used — due to allergy, for example — doxycycline can step in as an alternative. It should only be used for infections that are proven or strongly suspected to be caused by bacteria.

See full Doxycycline drug information
Keep checking

Other Drugs & Glycolic Acid

Browse every other medication we’ve checked against Glycolic Acid — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

We also checked Glycolic Acid against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Glycolic Acid list.

See the full Glycolic Acid interactions page
See every supplement checked against Doxycycline, ranked by severity
Evidence & sources

Glycolic Acid References

The 16 references that drive our Glycolic Acid monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. Stiller MJ, Bartolone J, Stern R, et al. Topical 8% glycolic acid and 8% L-lactic acid creams for the treatment of photodamaged skin. A double-blind, vehicle-controlled clinical trial. Arch Dermatol 1996;132:631-6.
  2. Kurtzweil P. Alpha-hydroxy acids for skin care: Smooth sailing or rough seas? FDA 1999. Available at: /www.fda.gov/fdac/features/1998/298_ahas.html (Accessed 18 August 2000). DOI
  3. Erbagci Z, Akcali C. Biweekly serial glycolic acid peels vs. long-term daily use of topical low-strength glycolic acid in the treatment of atrophic acne scars. Int J Dermatol 2000;39:789-94.. PubMed
  4. Javaheri SM, Handa S, Kaur I, Kumar B. Safety and efficacy of glycolic acid facial peel in Indian women and melasma. Int J Dermatol 2001;40:354-7.
  5. Baumann LS, Oresajo C, Yatskayer M, Dahl A, Figueras K. Comparison of clindamycin 1% and benzoyl peroxide 5% gel to a novel composition containing salicylic acid, capryloyl salicylic acid, HEPES, glycolic acid, citric acid, and dioic acid in the treatment
  6. Kaminaka C, Uede M, Matsunaka H, Furukawa F, Yamomoto Y. Clinical evaluation of glycolic acid chemical peeling in patients with acne vulgaris: a randomized, double-blind, placebo-controlled, split-face comparative study. Dermatol Surg. 2014 Mar;40(3):314- PubMed
  7. Vachiramon V, Sahawatwong S, Sirithanabadeekul P. Treatment of melasma in men with low-fluence Q-switched neodymium-doped yttrium-aluminum-garnet laser versus combined laser and glycolic acid peeling. Dermatol Surg. 2015 Apr;41(4):457-65. PubMed
  8. Abels C, Kaszuba A, Michalak I, Werdier D, Knie U, Kaszuba A. A 10% glycolic acid containing oil-in-water emulsion improves mild acne: a randomized double-blind placebo-controlled trial. J Cosmet Dermatol. 2011 Sep;10(3):202-9. PubMed
  9. Saadawi AN, Esawy AM, Kandeel AH, El-Sayed W. Microneedling by dermapen and glycolic acid peel for the treatment of acne scars: Comparative study. J Cosmet Dermatol. 2019;18(1):107-114. PubMed
  10. Rouvrais C, Baspeyras M, Mengeaud V, Rossi AB. Antiaging efficacy of a retinaldehyde-based cream compared with glycolic acid peel sessions: A randomized controlled study. J Cosmet Dermatol. 2018;17(6):1136-1143. PubMed
  11. US Food and Drug Administration (FDA). Cosmetic Ingredients: Alpha Hydroxy Acids. August 2020. Available at: https://www.fda.gov/cosmetics/cosmetic-ingredients/alpha-hydroxy-acids. Accessed on October 19, 2021.
  12. Bs C, Vadlamudi SL, Shenoy C. Safety of Performing Superficial Chemical Peels in Patients on Oral Isotretinoin for Acne and Acne-Induced Pigmentation. J Clin Aesthet Dermatol 2021;14(11):41-43.
  13. Banga G, Patel K. Glycolic Acid peels for nail rejuvenation. J Cutan Aesthet Surg 2014;7(4):198-201. PubMed
  14. Vishal B, Rao SS, Pavithra S, Shenoy MM. Contact urticaria to glycolic acid peel. J Cutan Aesthet Surg 2012;5(1):58-9. PubMed
  15. Nai RS, Ghiya BC, Mohta AK, Mehta RD. A randomized control trial of 20% glycolic acid versus 30% salicylic acid in the management of molluscum contagiosum. J Cutan Aesthet Surg 2022;15(3):249-253. PubMed

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Glycolic Acid and Doxycycline Together: Common Questions

Is it safe to take Glycolic Acid with Doxycycline?
We do not list a known interaction between Glycolic Acid and Doxycycline. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Do Glycolic Acid and Doxycycline have any of the same side effects?
Yes — our sources link each of them separately to 5 of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Should I take Glycolic Acid and Doxycycline at the same time of day?
At least one FDA label for a product containing Doxycycline says to take it on an empty stomach, and supplements are usually taken with a meal — so taking them together at breakfast is the easy mistake. Where that applies, keep Doxycycline on its own and move Glycolic Acid to a meal later in the day. Food instructions belong to the product rather than the ingredient, so check the directions on your own box. This is about absorption, not an interaction.
Does Doxycycline interact with any supplements?
Yes. Doxycycline has documented interactions with 166 supplements in our database — Glycolic Acid is not one of them. The Doxycycline interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

Glycolic Acid monograph Uses, safety profile, and every drug interaction in one place Doxycycline drug information The full plain-English guide to this medication Doxycycline supplement interactions Every supplement checked against Doxycycline, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 16 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Doxycycline and Glycolic Acid?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.