Bio Ionic OnePass Straightening Iron

Smooth, straightened hair in one stroke

Rated 5.0 out of 5
Based on 1 review
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€111.00 €139.00
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    What you need to know

    • Improved silicone strip technology lasts 10X longer
    • Infuses hair with tiny water particles and minerals
    • Rounded edges eliminate creasing and rounded body for flat iron curling
    • Digital temperature control up to 450°F/230°C
    • Temperature memory resets to last set temperature when re-powered
    • Use hair straightener daily for shiny locks

    2 Year Warranty Official Bio Ionic Retailer

    Our Expert View

    The Bio Ionic OnePass Styling Iron does what it says. It gets your hair 3 times smoother in just one pass. That's due to the extra silicone pad on the plate. Not only does it last 10 times longer than other market equivalents, but it helps you get the perfect pass the first time.

    Now infuse your hair with not just their proprietary mineral complex but also tiny water particles too. Seal them in for long-lasting shine and suppleness. See less breakage since you don't have to clamp the hair tightly in between the plates to get a good press.

    And with the rounded edges and body, it's Bio Ionic's best hair straightener for curls and waves too. The Bio Ionic OnePass Styling Iron is safe to use on all hair types and textures for daily heat styling.

    What's Inside

    • Bio Ionic OnePass Styling Iron
    • User Manual


    Our Story


    About Us


    why it works

    There are several unique technologies at play within the clever design of the Bio Ionic OnePass Styling Iron. The NanoIonic™ MX infuses tiny water particles and a blend of helpful minerals into each strand.

    The silicone speed strips allow you to glide through the hair without gripping it harshly. That means less breakage overall and less frizz. And it still boasts their popular Bio Ionic Moisturizing Heat™ tech which locks that hydration into the cuticle for shinier, healthier-looking hair.

    The Bio Ionic OnePass Styling Iron has all the features you want too, like a rounded barrel and edges for curling. The two sizes of irons, allowing you to style wider or smaller sections of hair for precise, longer-lasting results. And it features a safety auto-shut-off. Save time by letting it remember your preferred temperature from the last session - adjustable up to 230°C.

    it's as simple as

    Step 1: Divide the hair into sections.

    Step 2: Use light pressure as you glide the styler down the hair shaft. Don't clamp.

    Step 3: Repeat on the other sections. Allow to cool and style.

    make it personal

    The Bio Ionic OnePass Styling Iron gives you options. The varied temperature up to 230°C is suitable for all hair types and textures. And it will remember what you picked for the next day, so can you can easily make any look including curls and waves. The Bio Ionic OnePass Styling Iron has both rounded edges and a rounded body so you don't get any crimping and harsh lines. Save time and get the look you want in a single stroke.

    Discover more

    Read more about Bio Ionic

    average rating 5.0 out of 5
    Based on 1 review
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    100% of reviewers would recommend this product to a friend
    1 Review
    Reviewed by Christina, from United Kingdom
    Verified Buyer
    I recommend this product
    Age Range
    35 - 44
    Rated 5 out of 5
    Review posted

    Really good

    Really good, it’s easier to do my hair faster due to the wider plates and it seems it doesn’t damage it. Overall I would recommend it

    Rated 4 out of 5
    Rated 4 out of 5
    Ease of Use
    Rated 4 out of 5
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