Drug & supplement interaction

Sweet Almond + Tretinoin

Tretinoin brand names: Vesanoid, Retin-A, Renova, Altreno.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Oct 4, 2026
The bottom line No known interaction

We found no known interaction between Sweet Almond 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.

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Interaction report

Sweet Almond 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 Sweet Almond 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 Sweet Almond 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.

Sweet Almond safety at a glance

Sweet Almond overall Generally safe Generally safe as a food for most people, but a serious allergy risk for those with tree-nut allergy.
Pregnancy Generally safe Eating almonds as a normal food is considered safe in pregnancy if you are not allergic.
Breastfeeding Generally safe Eating almonds as a normal food is considered safe while breastfeeding if you are not allergic.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Tretinoin and Sweet Almond? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

No Interaction Found — But Data Suggests Sweet Almond and Tretinoin 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.

  • Itching / A skin rash Additional detail

    Sweet Almond

    “Topically, itching, dermatitis, and worsening eczema have been reported in a clinical trial.”

    Sweet Almond · Natural Medicines adverse-effect record, reported in dermatitis.

    1 source cited
    1. 101788. Simon D, Nobbe S, Nägeli M, et al. Short- and long-term effects of two emollients on itching and skin restoration in xerotic eczema. Dermatol Ther. 2018;31(6):e12692. PubMed

    Tretinoin

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

Reported for Sweet Almond but not commonly for Tretinoin: an allergic reaction.

Effects for Tretinoin come from the ADVERSE REACTIONS section of its FDA label; effects for Sweet Almond 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.

How to take them

Some Tretinoin Products Have a Food Rule — Sweet Almond Should Not Break It

At least one FDA label for a product containing Tretinoin says to take it with food. If you take Sweet Almond 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.

Overlapping uses

What Tretinoin Is Prescribed For, and What Sweet Almond Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Tretinoin is a prescription medicine with approved uses on its FDA label. Sweet Almond is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Tretinoin is prescribed for: Tretinoin is used in two very different ways. Topical products (creams, gels and a lotion) are mainly used for acne vulgaris. Age ranges differ by product: Retin-A MICRO is for ages 12 and older, and Altreno is for ages 9 and older. Renova cream is different.

Read the rest of what Tretinoin is prescribed for

It is used as an add-on for easing fine facial wrinkles alongside skin care and sun avoidance. Tretinoin capsules are a cancer medicine for inducing remission in acute promyelocytic leukemia (APL) in adults and children 1 year and older, in specific situations.

Sweet Almond has been studied for:

  • Cancer studied, not established Sweet Almond has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Sweet Almond for cancer

    Although there has been interest in using oral sweet almond for cancer, there is insufficient reliable information about the clinical effects of sweet almond for this purpose.

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Tretinoin on your own; if you are taking Sweet Almond for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

Everything else you take

See Every Supplement That Interacts With Tretinoin

This page covers Sweet Almond 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.

Open the Tretinoin interaction page

One more smart check

Taking Sweet Almond as Part of a Dietary Supplement Product? Check It for Interactions

We hold 61 real supplement products containing Sweet Almond, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Sweet Almond. Even though Sweet Almond 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:

How much people look this up

Where Sweet Almond 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.

Supplement Sweet Almond
Steady interest

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

29 days ago today
Medication Tretinoin
Top half

#1,403 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 Sweet Almond reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified October 4, 2026. The Sweet Almond 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.
Data structure & sourcing designed and verified by .
Supplement

About Sweet Almond

What is Sweet Almond?

  • Heart and cholesterol health
  • Skin moisturizing
  • Hair and scalp care
  • Constipation and digestive comfort
  • Nutritious snack and protein source

Sweet almonds are a nutritious tree nut rich in healthy fats, fiber, protein, vitamin E, and minerals, and they are generally safe and healthy to eat as part of a balanced diet. Almond oil is also widely used on the skin and hair. The main concern is tree-nut allergy, which can be serious; people with nut allergies should avoid almonds entirely.

Prunus dulcis · Rosaceae · Seed (nut) and oil pressed from the seed · Whole nuts, almond flour, almond milk, almond butter, almond oil (for skin and hair)

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

Sweet Almond: dosing

There is no official "dose" for sweet almonds because they are a food. In nutrition studies, a common amount is about a small handful (roughly an ounce) per day as part of a balanced diet, but this is a general guide, not a set medicine dose.For supplements, almond flour, or almond oil products, follow the directions on the label. A standardized medicinal dose has not been established.

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

Read the full Sweet Almond monograph & all interactions
Medication

About Tretinoin

What Is Tretinoin Used For?

Brand names: Vesanoid, Retin-A, Renova, Altreno

Tretinoin is used in two very different ways. Topical products (creams, gels and a lotion) are mainly used for acne vulgaris. Age ranges differ by product: Retin-A MICRO is for ages 12 and older, and Altreno is for ages 9 and older.

Renova cream is different. It is used as an add-on for easing fine facial wrinkles alongside skin care and sun avoidance. Tretinoin capsules are a cancer medicine for inducing remission in acute promyelocytic leukemia (APL) in adults and children 1 year and older, in specific situations.

See full Tretinoin drug information Tretinoin NDC codes and packages
Keep checking

Other Drugs & Sweet Almond

Browse every other medication we’ve checked against Sweet Almond — 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 Sweet Almond 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 Sweet Almond list.

See the full Sweet Almond interactions page
See every supplement checked against Tretinoin, ranked by severity
Evidence & sources

Sweet Almond References

The 4 references that drive our Sweet Almond 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. Motaharifard MS, Effatpanah M, Karimi M, et al. Effect of sweet almond syrup versus methylphenidate in children with ADHD: A randomized triple-blind clinical trial. Complement Ther Clin Pract. 2019;36:170-175. PubMed
  2. Simon D, Nobbe S, Nägeli M, et al. Short- and long-term effects of two emollients on itching and skin restoration in xerotic eczema. Dermatol Ther. 2018;31(6):e12692. PubMed
  3. Food and Drug Administration. Food Allergen Labeling and Consumer Protection Act of 2004 (FALCPA); Public Law 108-282, Title II. Accessed on May 19, 2021. Available at: https://www.fda.gov/food/food-allergensgluten-free-guidance-documents-regulatory-infor
  4. Salama M, Tebben PJ, Al Nofal A. An infant developing hypercalcemia and hypophosphatemia due to the use of exclusively almond milk. J Pediatr Endocrinol Metab 2024;37(4):375-379. 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 Sweet Almond and Tretinoin Together: Common Questions

Is it safe to take Sweet Almond with Tretinoin?
We do not list a known interaction between Sweet Almond and Tretinoin. 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 Sweet Almond and Tretinoin have any of the same side effects?
Yes — our sources link each of them separately to 2 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 Sweet Almond and Tretinoin at the same time of day?
At least one FDA label for a product containing Tretinoin says to take it with food. If you take Sweet Almond on an empty stomach out of habit, keep them separate and take Tretinoin with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Tretinoin products can differ — so check the directions on your own box. This is about absorption, not an interaction.
Are Sweet Almond and Tretinoin used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Sweet Almond in each. That is a conversation for your prescriber, especially if Tretinoin is being adjusted to a target.
Does Tretinoin interact with any supplements?
Yes. Tretinoin has documented interactions with 52 supplements in our database — Sweet Almond is not one of them. The Tretinoin 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

Sweet Almond monograph Uses, safety profile, and every drug interaction in one place Tretinoin drug information The full plain-English guide to this medication Tretinoin supplement interactions Every supplement checked against Tretinoin, 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 4 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Tretinoin and Sweet Almond?

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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.