Palmitoylethanolamide (pea) + Tretinoin
Tretinoin brand names: Vesanoid, Retin-A, Renova, Altreno.
We found no known interaction between Palmitoylethanolamide (pea) and Tretinoin 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 Tretinoin 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.
Palmitoylethanolamide (pea) and Tretinoin
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 Tretinoin and Palmitoylethanolamide (pea) 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 Palmitoylethanolamide (pea) at all — not against Tretinoin, 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.
Palmitoylethanolamide (pea) safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
Some Tretinoin Products Have a Food Rule — Palmitoylethanolamide (pea) Should Not Break It
At least one FDA label for a product containing Tretinoin says to take it with food. If you take Palmitoylethanolamide (pea) on an empty stomach out of habit, keep them separate — and take Tretinoin with a meal where the label says to.
This may not be true of your version. Food instructions belong to the product, not the ingredient: two Tretinoin 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.
Take tretinoin capsules with a meal.
From the Dosage and Administration section of the FDA label we read for Tretinoin — 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.
See Every Supplement That Interacts With Tretinoin
This page covers Palmitoylethanolamide (pea) only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Tretinoin page lists 52 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Vitamin A (major), African Wild Potato (moderate), Alfalfa (moderate) and Angelica Archangelica (moderate).
By severity: 2 major · 37 moderate · 13 minor.
Taking Palmitoylethanolamide (pea) as Part of a Dietary Supplement Product? Check It for Interactions
We hold 97 real supplement products containing Palmitoylethanolamide (pea), each one broken down to its full ingredient list — and combination products often carry several ingredients besides Palmitoylethanolamide (pea). Even though Palmitoylethanolamide (pea) itself has no known interaction with Tretinoin, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:
Where Palmitoylethanolamide (pea) and Tretinoin 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.
#611 of 1,452 supplements looked up here in the last 7 days
#2,121 of 2,830 medications looked up here in the last 7 days
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 Palmitoylethanolamide (pea) reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Palmitoylethanolamide (pea) and Tretinoin 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.
About Palmitoylethanolamide (pea)
What is Palmitoylethanolamide (pea)?
- Chronic pain
- Nerve (neuropathic) pain
- Inflammation
- Low back and sciatica pain
- General immune and recovery support
Palmitoylethanolamide (PEA) is a fat-like molecule made naturally in the body and studied mainly for pain and inflammation. Some research suggests it may help certain types of chronic and nerve pain, but the overall evidence is still limited and more high-quality studies are needed. It appears generally well tolerated, but talk with your pharmacist or doctor before starting it.
Not a plant; a fatty acid compound made in the body and found in some foods · Capsules, tablets, sublingual tablets, powders, and 'micronized' or 'ultramicronized' formulations
An interaction check asks whether these two react with each other — it does not ask whether Palmitoylethanolamide (pea) is a good idea for someone in your situation. Here is what our Palmitoylethanolamide (pea) record says about it on its own.
Palmitoylethanolamide (pea): dosing
There is no official, standardized dose of PEA. Studies have used a range of amounts and different formulations, including micronized and ultramicronized versions, which can affect how the body absorbs it.Because of this, the best approach is to follow the directions on the product label and start with the lowest suggested amount.
From our Palmitoylethanolamide (pea) monograph — the full record covers uses, side effects and every documented interaction.
About Tretinoin
What Is Tretinoin Used For?
Brand names: Vesanoid, Retin-A, Renova, Altreno
Tretinoin cream 0.02% is approved to help lessen the look of fine facial wrinkles in people who also follow a comprehensive skin care and sun-avoidance program — including daily sunscreen, protective clothing, and moisturizers.
It's important to know what tretinoin does not do: it will not erase wrinkles, reverse sun damage, repair deeply weathered skin, or restore younger-looking skin. It has also not been shown to help with coarse or deep wrinkles, rough skin texture, dark spots, or sagging skin.
Most-Reported Side Effects for Tretinoin
From FAERS, the FDA’s public side-effect reporting system (0 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.
Other Drugs & Palmitoylethanolamide (pea)
Browse every other medication we’ve checked against Palmitoylethanolamide (pea) — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
No interaction 2,829 drugs checked — show the list
We also checked Palmitoylethanolamide (pea) against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Testosterone ›
- Losartan Potassium ›
- Ivermectin ›
- Metoprolol ›
- Aspirin ›
- Rivaroxaban ›
- Rosuvastatin ›
- Acetaminophen ›
- Escitalopram ›
- Tadalafil ›
- Abemaciclib ›
- Clopidogrel ›
- Atorvastatin ›
- Docusate ›
- Hydroxyurea ›
- Valacyclovir ›
- Ibuprofen ›
- Tirzepatide ›
- Methamphetamine ›
- Warfarin Sodium ›
- Semaglutide ›
- Sumatriptan ›
- Prednisone ›
- Propranolol ›
- Lisdexamfetamine ›
- Metformin ›
- Lisinopril ›
- Amoxicillin ›
- Bupropion ›
- Amitriptyline ›
- Bendamustine ›
- Acyclovir ›
- Methotrexate ›
- Doxycycline ›
- Fluoxetine ›
- Amphetamine ›
- Pregabalin ›
- Lamotrigine ›
- Acetaminophen, Codeine ›
- Azithromycin ›
- Gabapentin ›
- Isotretinoin ›
- Dextroamphetamine ›
- Clonazepam ›
- Methylene Blue ›
- Amlodipine Besylate ›
- Omeprazole ›
- Quetiapine ›
- Letrozole ›
- Duloxetine ›
- Naproxen ›
- Buspirone ›
- Citalopram ›
- Ciprofloxacin ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Palmitoylethanolamide (pea) list.
Palmitoylethanolamide (pea) References
The 4 references that drive our Palmitoylethanolamide (pea) 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.
- Indraccolo U, Barbieri F. Effect of palmitoylethanolamide-polydatin combination on chronic pelvic pain associated with endometriosis: preliminary observations. Eur J Obstet Gynecol Reprod Biol. 2010 May;150(1):76-9. PubMed
- Murina F, Graziottin A, Felice R, Radici G, Tognocchi C. Vestibulodynia: synergy between palmitoylethanolamide + transpolydatin and transcutaneous electrical nerve stimulation. J Low Genit Tract Dis. 2013 Apr;17(2):111-6.
- Papetti L, Sforza G, Tullo G, et al. Tolerability of palmitoylethanolamide in a pediatric population suffering from migraine: A pilot study. Pain Res Manag 2020;2020:3938640. PubMed
- Visse K, Blome C, Phan NQ, Augustin M, Ständer S. Efficacy of body lotion containing N-palmitoylethanolamine in subjects with chronic pruritus due to dry skin: A dermatocosmetic study. Acta Derm Venereol. 2017;97(5):639-641. 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.
Tretinoin Is Linked to Lower Levels of One Nutrient
Natural Medicines records Tretinoin as a medicine that can lower these. This is not an interaction with Palmitoylethanolamide (pea) — it is a separate effect of the medicine, and it is a reason some people are advised to supplement rather than to avoid one:
Read the full Tretinoin nutrient depletion report ›
Depletion records come from the licensed Natural Medicines database. Do not start a supplement on the strength of this page — ask your pharmacist or doctor whether it applies to you.
Taking Palmitoylethanolamide (pea) and Tretinoin Together: Common Questions
Is it safe to take Palmitoylethanolamide (pea) with Tretinoin?
Do Palmitoylethanolamide (pea) and Tretinoin have any of the same side effects?
Should I take Palmitoylethanolamide (pea) and Tretinoin at the same time of day?
Does Tretinoin interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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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.