Sound familiar?
Your iron pills had one job.
Your stomach had other plans.
If you've ever quit iron halfway through the bottle, you're not lazy. You're normal.
"I have felt AWFUL since taking them… my stomach is cramping."
Online health forum"Doctors just go 'normal' and send you on your way. Meanwhile, your ferritin is 30."
Online health forum"I am so tired of being tired and achy all the time."
Video commentGentle iron. No pill. No water. No metallic taste. Just one raspberry strip a day. 🍓
Real public comments from women about iron. Not Costenia customers or reviews of our product.
Strips vs. pills
Dear iron pills,
it's not me. It's you.
Nausea. Constipation. Cramps. Metallic burps. That's why so many women quit iron halfway through the bottle.
Iron Strips | Iron pills | |
|---|---|---|
| Gentle on your stomach | Made to be gentle | Often nausea, constipation, cramps |
| No pill to swallow | ✓ | ✕ |
| No water needed | ✓ | ✕ |
| No metallic aftertaste | ✓ | ✕ |
| Iron per serving | 19mg gentle | Often 65mg |
| Lives in your bag | ✓ | ✕ |
| Cheapest on the shelf | ✕ | ✓ |
P.S. Yes, a pharmacy bottle costs less. But a half-finished bottle in the drawer isn't much of a saving. Iron only works if you actually take it.
How to use
One strip a day.
That's the whole routine.

Grab a strip
Each one is individually wrapped. Tear, done.

Pop it on your tongue
It melts in under a minute. Raspberry. No water.

Repeat tomorrow
Keep the tin where you'll see it. Bag, desk, car.
Pro tip: take it away from your morning coffee or tea. Iron absorbs best without them.
Why 90 days?
Iron stores rebuild over weeks and months, not days. So we built the routine around 3 tins.
What's inside
Two active ingredients.
Zero nonsense.
Just what your body needs to make healthy red blood cells, in a strip that tastes like raspberry.*
Supplement Facts & directions
| Supplement Facts | ||
|---|---|---|
| Serving Size: 1 Oral Strip (200mg) · Servings Per Container: 30 | ||
| Amount Per Serving | %DV | |
| Folate | 400mcg DFE (240mcg folic acid) | 100% |
| Iron (as Ferric Saccharate) | 19mg | 106% |
Other ingredients: Pullulan, Cellulose, Lecithin, Raspberry Flavor, Monk Fruit Extract, Citric Acid, Medium-Chain Triglycerides, Xanthan Gum, Steviol Glycosides.
Directions: Place 1 strip on your tongue once daily and let it dissolve. Do not exceed 1 strip per day.
Caution: Consult your doctor before use if pregnant, nursing, under 18, taking medication or have a medical condition. Do not use if the safety seal is damaged or missing. Store in a cool, dry place.
WARNING: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose, call a doctor or poison control center immediately.
Testing & facility
Made in a WHO-GMP and NSF-certified facility that specializes in oral dissolving strips.
Each batch is tested and comes with a Certificate of Analysis, including heavy metals (lead, cadmium, arsenic, mercury). Want to see it? Email info@costenia.com and we'll send it over.
The Empty-Tin Guarantee
Try it for 90 days.
Or your money back.
Take one strip a day. If it's not right for you, email us within 100 days and we'll refund your first order. Even if every tin is empty. Nothing to send back.
First order only, one per household. Shipping not refundable. Full terms
FAQ
Got questions?
We've got honest answers.
How long until I notice a difference?
Everyone's different. Iron stores rebuild over weeks and months, not days. Take one strip every day and give it the full 90 days. That's why the guarantee is 90 days long.
If you want numbers, ask your doctor to check your ferritin before you start and again at around 3 months.
Is 19mg really enough?
19mg is 106% of your Daily Value. And your body absorbs a bigger share of a small dose than of a big one.
The real secret isn't a huge dose. It's a small one you actually take every single day.
Will it upset my stomach like other iron?
It's made not to. There's no pill and no ferrous sulfate, just 19mg of iron.
The NIH sets the adult upper limit at 45mg a day, mainly because higher doses often cause nausea and constipation. Typical iron pills are around 65mg.
Can I take it with coffee, tea or medication?
Take it any time of day. Iron absorbs best away from coffee, tea and calcium, so leave an hour or two when you can.
Iron can affect some medications, like thyroid medication and some antibiotics. If you take a prescription, ask your pharmacist about timing.
Can I take it if I'm pregnant or breastfeeding?
Please check with your doctor first. The same goes if you're under 18, take medication, have a medical condition, or have been told your iron is high.
I have an MTHFR variant. Is the folic acid okay?
According to the CDC, people with MTHFR variants can process all types of folate, including folic acid. Iron Strips contain 400mcg DFE from 240mcg folic acid.
If your doctor recommends a specific form of folate, check with them first.
What does it taste like?
Raspberry, sweetened with monk fruit and stevia. It melts on your tongue, so there's nothing to wash down and no metallic aftertaste.
How does the subscription work?
Your tins ship automatically every 30, 90 or 180 days, depending on your plan, at your subscriber price.
Skip, pause or cancel anytime from your account or the link in your email, at least 24 hours before your next billing date.
When will my order arrive?
Orders ship from our US warehouse, usually within 1–3 business days, then typically 3–5 business days to your door. You'll get tracking by email.
What if it's not right for me?
You're covered by our 90-Day Empty-Tin Guarantee. Email info@costenia.com within 100 days of your order and we'll refund your first order, even if every tin is empty.
Nothing to send back.
Still wondering? Email us at info@costenia.com →
Iron Strips