Crocetin
A yellow-orange carotenoid from saffron, sold either as pure crocetin or (more often) as saffron extract standardized to crocin/crocetin content. Small RCTs show modest signals for age-related macular degeneration, mild-to-moderate depression, and sleep quality. Most evidence is small, single-center Iranian trials; results have not been replicated at scale.
Quick decision guide
May help most
Adults with mild-to-moderate AMD or mild-to-moderate depression who want a low-risk botanical adjunct alongside standard care.
Common dosing range
Crocetin: 7.5–22.5 mg/day. Saffron extract (standardized): 28–30 mg/day, divided.
When to expect effects
Sleep / mood: 2–6 weeks. Retinal function: 3 months in trials.
Watch out for
Saffron / crocetin is not safe in pregnancy — uterotonic effects can induce miscarriage. Very high saffron doses (≥5 g/day) can be fatal.
Evidence snapshot
What is it
Is it worth it for you?
Use this as a quick fit check, not a diagnosis.
Worth considering if…
Probably skip if…
Evidence at a glance
| Goal | Effect | Best fit | Time |
|---|---|---|---|
Mild-to-moderate major depressive disorder Good Evidence | Large effect (SMD -1.22) in published RCTs vs placebo; equivalent to SSRIs in head-to-head trials | Adults with mild-to-moderate MDD wanting a botanical adjunct or alternative to SSRIs | 2–6 weeks of daily dosing |
Age-related macular degeneration (AMD) Limited Evidence | ≈3–5 dB improvement in mfERG amplitude at 3 months; macular thickness reductions in wet AMD | Adults with early or intermediate AMD wanting an adjunct beyond AREDS2 | 3 months in published trials |
Sleep quality Limited Evidence | Modest PSQI improvement (~1–2 points) over 4–6 weeks in small trials | Adults with mild self-reported insomnia who want to try a botanical option | 4–6 weeks |
Mild-to-moderate major depressive disorder
- Effect
- Large effect (SMD -1.22) in published RCTs vs placebo; equivalent to SSRIs in head-to-head trials
- Best fit
- Adults with mild-to-moderate MDD wanting a botanical adjunct or alternative to SSRIs
- Time
- 2–6 weeks of daily dosing
Age-related macular degeneration (AMD)
- Effect
- ≈3–5 dB improvement in mfERG amplitude at 3 months; macular thickness reductions in wet AMD
- Best fit
- Adults with early or intermediate AMD wanting an adjunct beyond AREDS2
- Time
- 3 months in published trials
Sleep quality
- Effect
- Modest PSQI improvement (~1–2 points) over 4–6 weeks in small trials
- Best fit
- Adults with mild self-reported insomnia who want to try a botanical option
- Time
- 4–6 weeks
Evidence for 3 uses
AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.
Mild-to-moderate major depressive disorder
Supplement benefitYang 2018 meta-analysis of 7 RCTs (n=316) of saffron extract (30 mg/day standardized to crocin/crocetin) found large improvement vs placebo (SMD -1.22) and equivalence to SSRIs (fluoxetine, citalopram). All trials were Iranian, mostly 6–8 weeks, with mild-to-moderate MDD; replication outside Iran is limited. Effect size is implausibly large in some trials, raising publication/region bias concerns. Treat as a credible adjunct, not a replacement for prescription antidepressants in moderate-severe disease.
Bottom line: Reasonable evidence for mild-to-moderate depression, but the data is geographically narrow. Don't replace prescribed antidepressants without telling your prescriber.
Evidence is mixed
Evidence base is geographically narrow (almost entirely Iranian trials), effect sizes are unusually large, and the meta-analyses note moderate-to-high risk of bias. Western replications remain limited.
Age-related macular degeneration (AMD)
Supplement benefitSaffron extract standardized to crocin/crocetin at 20–30 mg/day for 3–6 months improved multifocal electroretinogram (mfERG) amplitudes in small RCTs in early-intermediate AMD, with some macular-thickness benefit in wet AMD. Visual acuity changes have been inconsistent. Trials are mostly small (n<60) and from Italian and Iranian groups; no large multinational replication exists. Position as adjunct to AREDS2-style supplementation under ophthalmologist guidance.
Bottom line: Promising small-trial signal on retinal electrophysiology. Discuss with your ophthalmologist; don't substitute for AREDS2 or anti-VEGF therapy.
Sleep quality
Supplement benefitSmall RCTs of saffron extract 14–28 mg/day in adults with self-reported poor sleep show improvement in PSQI scores over 4–6 weeks. Magnitude is modest and trials are small. Mechanism is hypothesized to involve serotonergic/GABAergic modulation. Less studied than valerian, melatonin, or magnesium for sleep.
Bottom line: An option to try if you're already considering saffron for mood. Don't expect it to outperform CBT-I or established sleep aids.
How it works
How to take it
What to track
Bottom line: Start at 28–30 mg/day standardized saffron extract split into two doses. Reassess after 6–8 weeks; if no benefit, stop. Don't use in pregnancy.
4 commercial forms
Compare the main delivery options and what they’re best suited for.
Standardized saffron extract (≥2% crocin/crocetin)
Most studiedThe form used in nearly all clinical trials. Brand-name extracts like affron® (Pharmactive) and Safr'Inside™ (Activ'Inside) have published RCT data. 28–30 mg/day in 2 divided doses is the trial-standard regimen.
Reference clinical form; standardized constituent ratios.
Pure crocetin (isolated)
Form-specific supplementIsolated trans-crocetin in capsules at 7.5–22.5 mg per serving. Marketed for circulation and eye health. Less trial data than whole saffron extract — most 'crocetin benefits' actually reference whole-saffron studies.
Higher peak plasma crocetin than equimolar crocin (skips intestinal hydrolysis step).
Crocin (water-soluble glycoside)
Saffron-derivedThe water-soluble glycoside esters of crocetin. Hydrolyzed in the gut to release crocetin (the absorbed form). Used in some pure-isolate products; functionally interchangeable with saffron extract.
Hydrolyzed to crocetin in gut; net plasma crocetin similar.
Whole saffron threads (culinary)
Food useDried stigmas of Crocus sativus. Used for flavor and color in cooking. A pinch (~0.1 g) per serving is safe; dose is too low for therapeutic effect studied in trials.
Per-serving dose is far below the supplemental therapeutic range.
Safety
Know the common side effects, key cautions, and who should avoid it.
Common side effects
Serious risks
Pregnancy harm — saffron is uterotonic and has been used historically as an abortifacient. Doses above culinary amounts can induce miscarriage. Avoid all saffron/crocetin supplements in pregnancy.
Toxicity at high doses — whole saffron above 1.5 g/day causes nausea, vomiting, vertigo, and bleeding; ≥5 g/day can be fatal. Standardized extracts at trial doses (28–30 mg/day) are well below this threshold.
Mild antiplatelet activity — may add to bleeding risk on anticoagulants/antiplatelets. Stop ≥1 week before surgery.
Who should avoid it
- Pregnant women and those actively trying to conceive — risk of miscarriage.
- People with bipolar disorder — antidepressant-like effect could theoretically precipitate mania (extrapolated from SSRI experience; not specifically documented for saffron).
- People on warfarin, DOACs, or antiplatelets — additive bleeding risk.
- People taking MAOIs — theoretical interaction risk with antidepressant-like compound; avoid combination.
Pregnancy & breastfeeding
Avoid all saffron, crocetin, and crocin supplements during pregnancy. Saffron is uterotonic at doses higher than culinary use and has historical use as an abortifacient. Culinary amounts (a pinch in food) are unlikely to cause harm but supplemental doses are unsafe. Breastfeeding safety also not established — avoid.
Bottom line: Safe at trial doses (28–30 mg/day saffron extract) for non-pregnant adults. Pregnancy and high-dose use are the two real concerns.
Interactions
Saffron has antidepressant-like activity (serotonergic modulation suggested). Combining with prescription antidepressants is studied (often equivalent monotherapy) but combination dosing should be physician-supervised; theoretical serotonin-syndrome risk if stacked.
Saffron has mild antiplatelet activity in vitro and may modestly potentiate bleeding risk. Monitor for bruising; stop saffron ≥1 week before surgery.
Saffron may modestly lower blood pressure; monitor BP if combined with prescription antihypertensives.
Food sources
| Food | Amount | %DV |
|---|---|---|
| Whole saffron threads (culinary) | 1 pinch (~0.1 g, ~0.5 mg crocin) | — |
| Saffron in paella, risotto, biryani | 1 serving (small culinary amount) | — |
Whole saffron threads (culinary)
- Amount
- 1 pinch (~0.1 g, ~0.5 mg crocin)
- %DV
- —
Saffron in paella, risotto, biryani
- Amount
- 1 serving (small culinary amount)
- %DV
- —
Choosing a product
What to look for on the label — and what to be skeptical of.
Look for…
Be skeptical of…
Frequently asked questions
Is crocetin the same as saffron?⌄
Crocetin is one of saffron's primary bioactive compounds. Saffron extracts often standardize to crocin (which converts to crocetin) or crocetin content.
References by claim
Age-related macular degeneration (AMD)
Lashay et al., 2016 — Medical Hypothesis Discovery and Innovation in Ophthalmology (2016) link
Mild-to-moderate major depressive disorder
Yang et al., 2018 — Neuropsychiatric Disease and Treatment (2018) link
Sleep quality
Memorial Sloan Kettering Cancer Center — About Herbs — Saffron (2024) link
Track Crocetin with Pilora
Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.
Coming to App StoreDisclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.