Why Is iHerb So Much Cheaper Than Shops in Singapore? (2026)

iHerb is often cheaper than shops in Singapore because it sells online only, at global scale, and already folds the 9% GST and free delivery over SG$30 into what you pay. According to iHerb at the time of writing, it ships from 9 fulfilment centres and inventory hubs to 180+ countries, carries 50,000+ products and has 16 million+ active customers. Shops in Singapore carry store and local stock costs, but give you the item today.

New to ShopBack? ShopBack Singapore is a free app and website that gives you cash back when you shop with partner stores, including iHerb. Go through ShopBack before you check out, pay as normal, and the cash lands in your ShopBack account once your order is confirmed. Sign up to ShopBack Singapore for free.

Why is iHerb so much cheaper than shops in Singapore?

The short answer is scale and a different cost structure: iHerb sells from warehouses to buyers in 180+ countries, while shops in Singapore pay for physical stores, staff and local stock. Here are the main reasons, using iHerb's own figures at the time of writing:

Reason	What iHerb says
Online only, global scale	Ships from 9 fulfilment centres and inventory hubs to 180+ countries; 16 million+ active customers
Wide range	50,000+ products, including its own iHerb Brands
Buys from brands and distributors	Sources directly from brands and authorised distributors, and fulfils every order itself, with no third-party sellers
Free delivery to Singapore	Free shipping on orders over SG$30.00
Tax already in the price	9% GST on low-value goods (S$400 and below) is included in the product price
Frequent offers	Brands of the Week, Specials, Trial Offers, codes and Subscribe and Save

What shops in Singapore do differently. Pharmacies and health stores in Singapore pay for retail space and keep stock on hand across many outlets. Those costs can show up in the shelf price, but they also buy you things iHerb cannot: you can pick the item up the same day, return it at a counter, and ask a pharmacist or staff member for advice. Local stores also run their own member prices and bundle deals, so the gap is not fixed.

When iHerb is not cheaper

iHerb is not always the cheaper option, so compare the final total rather than the item price. The main cases:

• Small orders. Below SG$30.00, iHerb's Singapore shipping page says shipping is charged, which can wipe out the saving on one or two items.
• Duties and limits. iHerb's carrier table lists GST as included and duty as not included, and each carrier has limits; at the time of writing Ninja Van Singapore lists a 10kg weight limit and SF Express Singapore a 5kg limit. iHerb also notes that orders very close to the tax-free limit may be assessed duties and taxes because exchange rates move between order and customs clearance.
• Restricted products. iHerb's Singapore shipping page lists substances that cannot be imported into Singapore and asks shoppers to check with Singapore Customs about permits. If a product is restricted, buying locally is the only route.
• Urgent needs. Most iHerb orders arrive in 2 to 6 days according to iHerb, which is too slow if you need something today.

iHerb promo codes for Singapore in 2026: how they work

iHerb publishes its current codes on its Sales, Deals and Promos page, and each code has its own minimum spend, maximum discount and exclusions. At the time of writing, that page lists codes with conditions such as a minimum order value in Singapore dollars and a capped discount, and says "exclusions may apply". Because codes change often, we do not list them here.

Three things to check before you use any iHerb promo code:

1. The minimum spend in Singapore dollars, and whether shipping counts toward it.
2. The maximum discount, since many codes are capped.
3. Which products are excluded. iHerb links to its promo rules and exclusions from the sales page.

First order offer. At the time of writing, iHerb says new email subscribers get 25% off their first order. As with every code, check the terms at checkout.

Codes and ShopBack. ShopBack's iHerb terms on ShopBack Singapore say, at the time of writing, that orders using iHerb reward codes, promo codes or credits not provided by ShopBack are not eligible. So either use a code shown on the iHerb page on ShopBack, or compare the total with an iHerb code against going through ShopBack without one, and pick the lower.

iHerb's official deals: sales, Subscribe and Save and Rewards

iHerb runs four main kinds of official offers: sales events, Brands of the Week and Specials, Subscribe and Save, and its Rewards programme.

• Sales and Specials. iHerb's sales page groups Brands of the Week, Specials and Trial Offers in one place, along with time-limited sitewide sales.
• Subscribe and Save. iHerb says you "save up to 10% on every Subscribe & Save order" and can skip, change or cancel anytime. It suits products you reorder on a schedule. Note that ShopBack's iHerb terms list Subscribe and Save orders as not eligible at the time of writing, so for repeat items you are choosing one saving or the other.
• iHerb Rewards. iHerb says you earn 10% in Rewards Credit when a new customer shops using your Rewards link or code, and 5% when the person is already an iHerb customer.
• iHerb Brands. iHerb sells its own label products alongside third-party brands, so it is worth comparing an iHerb Brands item with the branded version you usually buy.

The cheapest way to buy on iHerb in Singapore

Plan one bigger order, check the official offers, then go through ShopBack before you pay. Step by step:

1. Build one basket over SG$30.00 so shipping is free, and stay within your carrier's limits.
2. Check iHerb's sales page for Brands of the Week and sitewide sales that cover your items.
3. Compare two totals: one with the best iHerb code you qualify for, and one going through ShopBack without a code (or with a code listed on ShopBack).
4. Go through ShopBack. Open the iHerb page on ShopBack Singapore, tap through to sg.iherb.com and check out in that session on the website, shipping to Singapore.
5. Check expiry dates on the product page; iHerb lets you see the best-by date before you buy.

Going through ShopBack is an essential step before you check out, so you pay less on the same order. It is the same habit that works for merchants like Booking.com, Trip.com, Agoda and Expedia.

iHerb and ShopBack in Singapore: how it works in 2026

iHerb is listed on ShopBack Singapore, so you can go through ShopBack before you check out on sg.iherb.com. Going through ShopBack gets you a cash rebate on the same order, at the same store. Cashback lowers what you actually pay for an order. It comes back as cash, so it works like a discount on the price, not like points or miles.

A worked example, with an illustrative rate only: on a S$120 iHerb order at an illustrative 5%, S$6 comes back, so the effective price is S$114. Rates change, so check the live rate on the iHerb page on ShopBack before you buy.

At the time of writing, ShopBack's iHerb terms say only orders placed and completed on the sg.iherb.com website and shipped to Singapore are eligible, and iHerb app orders are not. The full, current terms are on the iHerb page on ShopBack.

iHerb, credit card rewards and other offers

Your credit card's rewards on an iHerb order come from your bank, so they depend on how your card treats online spend. Some Singapore cards give higher rewards on online purchases; for example, DBS lists 10X DBS Points (4 miles per S$1) on online purchases for the DBS Woman's World Mastercard at the time of writing. Check your card's terms for how online and foreign merchant spend is classed, since iHerb is an overseas online store.

Card rewards and ShopBack's cash rebate usually come from different places, but whether a given payment method or code affects ShopBack tracking is set out in the iHerb terms on ShopBack, so check them before you pay.

Other places to buy vitamins and supplements in Singapore

Other places Singapore shoppers compare for vitamins and supplements include Guardian, Watsons, Lazada and Shopee. Each has its own sales calendar and member pricing, so the same routine applies: compare the final price, then go through ShopBack Singapore where the store is listed.

The verdict

iHerb is often cheaper than shops in Singapore because it sells online at global scale, ships free over SG$30 and already includes the 9% GST, but small orders, duties, restricted items and local sales can close the gap. Build one basket over SG$30, compare the total with and without a code, and go through the iHerb page on ShopBack Singapore before you check out on the website.

Frequently asked questions

Why is iHerb so much cheaper than shops in Singapore?

iHerb is often cheaper because it sells online only, ships from 9 fulfilment centres and inventory hubs to 180+ countries at large scale, and runs frequent sales and codes, according to iHerb. It ships free to Singapore on orders over SG$30 and already includes the 9% GST in its prices at the time of writing. Shops in Singapore carry the costs of physical stores and local stock, and in return you get the item the same day and can ask staff for advice.

Is iHerb always cheaper than buying in Singapore?

Not always. Small orders under SG$30 pay shipping, local stores run their own sales and bundles, and some products are restricted or cannot be imported into Singapore. Compare the final iHerb total, including any shipping, with the local price on the same day.

Does iHerb charge GST in Singapore?

Yes. iHerb's Singapore shipping page says the 9% GST on low-value goods of S$400 and below is included in the product price and paid to the Inland Revenue Authority of Singapore, so you do not pay it again at delivery for those orders. Duties are not included, and orders close to the tax-free limit may be assessed differently because of exchange rates.

What is the minimum order for free shipping on iHerb Singapore?

iHerb's Singapore shipping page lists free shipping on orders over SG$30.00 at the time of writing. Carriers such as Ninja Van Singapore and SF Express Singapore have their own order value and weight limits, which iHerb shows on the same page.

How do I find a working iHerb promo code for Singapore?

iHerb lists its current codes and offers on its Sales, Deals and Promos page, and ShopBack lists codes that work with ShopBack on its iHerb page. Codes change often and have minimum spends and exclusions, so check the code's terms at checkout before you rely on it.

Does iHerb have a first order discount?

At the time of writing, iHerb says new email subscribers get 25% off their first order. Offers like this change, so check iHerb's Sales, Deals and Promos page for the current one.

What is iHerb Subscribe and Save?

Subscribe and Save is iHerb's repeat delivery option. iHerb says you save up to 10% on every Subscribe and Save order and can skip, change or cancel anytime. It suits products you reorder on a schedule, such as daily vitamins.

What is the cheapest way to buy on iHerb in Singapore?

Plan one order above the SG$30 free shipping line, check iHerb's sales page and Brands of the Week, compare the total with and without any code, then go through the iHerb page on ShopBack Singapore before you check out on the iHerb website. Pick the route that gives the lowest final price for that order.

Can I use ShopBack with iHerb in Singapore?

Yes. iHerb is listed on ShopBack Singapore. Open the iHerb page on ShopBack, tap through to sg.iherb.com and complete your order in that session, shipping to Singapore. Cash comes back to your ShopBack account once the order is confirmed. The live rate and terms are shown on the iHerb page on ShopBack.

Do iHerb promo codes work with ShopBack?

Only some. At the time of writing, ShopBack's iHerb terms say orders using iHerb reward codes, promo codes or credits not provided by ShopBack are not eligible, and Subscribe and Save orders and iHerb app orders are excluded. Use only codes shown on the iHerb page on ShopBack, or compare the total with an iHerb code against going through ShopBack without one.

Key takeaways

• iHerb ships free to Singapore on orders over SG$30.00 and includes the 9% GST in its prices for low-value goods, according to iHerb.
• It is often cheaper because it sells online at global scale from 9 fulfilment centres to 180+ countries.
• Small orders, duties, restricted products and local sales can make shops in Singapore the better buy.
• iHerb's Subscribe and Save gives up to 10% off repeat orders, and its sales page lists current codes.
• Before you check out on sg.iherb.com, go through the iHerb page on ShopBack Singapore.

Disclaimer

Shipping thresholds, carrier limits, GST treatment, offers and programme rules are set by iHerb and Singapore authorities and can change at any time. Figures on this page are as published on iHerb's Singapore website at the time of writing. Please check iHerb's latest terms before you order. This article is general information, not health advice.

ShopBack rates and eligibility are subject to ShopBack's terms and iHerb's terms.