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Deal.ai › Brands

Is ISO on Sale? November 2026

Prices checked Nov 9, 2026, 4:13 AM ET

Is ISO on sale?

Not right now: ISO prices are at their usual levels.

ISO prices today, and how low they've been

  • ISO
    ISO Super Spectrum Pro 1.25" Flat Iron
    ISO Super Spectrum Pro 1.25" Flat Iron$54.99 at Shop Simon    Visit Shop Simon
  • ISO
    ISO Sunshine Girl ISOSGR-202-SMB Flat Iron 1.25"
    ISO Sunshine Girl ISOSGR-202-SMB Flat Iron 1.25"$44.99 at Newegg    Visit Newegg
  • ISO
    ISO Beauty Black Label Round 1 Flat Iron
    ISO Beauty Black Label Round 1 Flat Iron$109.99 at Newegg    Visit Newegg
  • ISO
    ISO Spectrum Pro 1.25" Solid Ceramic Flat Iron
    ISO Spectrum Pro 1.25" Solid Ceramic Flat Iron$49.99 at Shop Simon    Visit Shop Simon

    • Not right now. ISO prices are at their usual levels: the ISO Super Spectrum Pro 1.25" Flat Iron is $54.99 at Shop Simon. Any ISO deal shows here as soon as it starts.

    ISO is a US supplement brand known for third-party-tested protein powders, creatine, and pre-workout formulas sold mainly through bodybuilding and nutrition retailers. Its lineup centers on whey protein isolates, mass gainers, and amino acid products aimed at lifters. Deal.ai checks every store's price for each ISO product and keeps its price history, so you can see how each store's current price compares with what it has charged before.

    Ask our shopping agent

    It checks today's price at every store, compares the alternatives and answers in about a minute.

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    Questions and answers

    What is ISO known for?
    ISO is best known for protein powders, especially its whey protein isolate blends, along with creatine and pre-workout. Its products are sold through third-party supplement retailers rather than its own storefront.
    Does ISO run sales?
    ISO does not sell direct, so promotions come from the retailers that stock it. Timing varies by store, and the price history on this page shows how each store's pricing has moved over time.
    What are ISO's best products?
    Shoppers most often look for its whey protein isolate, which is fast-digesting and low in lactose, and its creatine monohydrate. Its pre-workout and amino products are the next most requested.
    Does ISO offer a warranty or returns?
    Returns are handled by the retailer you buy from, not by ISO, so check that store's return window and conditions before ordering. Unopened tubs are the easiest to return.
    Are ISO supplements third-party tested?
    ISO states that its products are tested for purity and label accuracy, and lot information is printed on the packaging. Ask the retailer for the current label if you need a specific certification.
    Are there ISO discount codes?
    Deal.ai checks what ISO products actually cost at every store, so a real markdown shows on this page as a deal as soon as it starts, and each product's page has its price history to tell a sale from its usual price.