How to Compare Fragrance Oil Samples Before Choosing a Wholesale Supplier

Is it actually the oil? Make the round fair first

In our judgement, the usual way a supplier comparison goes wrong is not dishonesty. It is drift. Supplier A's sample arrived first and was poured in March in the old wax; supplier B's in April in a new bag; supplier C's candle was judged on day 6 because a customer was waiting. The winner is then whichever sample happened to get the kindest conditions, and a supplier relationship worth lakhs over a year is decided by a wick pack.

So the question "is it the oil?" matters here as much as in any troubleshooting post. Before a result counts against any supplier, including us, check that the jar, wax, wick, load, pour day, cure day and room were identical, and that your reference candle performed as usual. If the reference was weak in a round, that round says nothing about any supplier. Comparing two oils head to head, with swapped positions and a decision rule, has its own method in How to Compare Two Fragrance Oils for Actual Candle Performance; this page scales that to several suppliers and adds everything that is not in the jar.

The blind comparison protocol

Choosing what to compare

Pick two or three scent types that matter to your range, and for each, the nearest equivalent each supplier sells: a lavender, a citrus-amber blend, a fresh green. Names differ between suppliers and so do interpretations; choose by the notes on the page, not the name, and not by how strong the bottle smells (see Can a Fragrance Oil Smell Strong in the Bottle but Perform Poorly in a Candle?). Buy the sample size each supplier offers at its list price, and note the purchase date and any pack or batch reference printed on the bottle. If a supplier offers a free or special "sample" that is not the product you would buy, ask whether it is the same oil as the listed 1 kg; you want to compare what you will receive at volume.

Building the round

Three scents from three suppliers plus a reference is ten candles. Worked example on CSI materials: 1,380 g of Luxury Soy Wax CSI 464 (₹700.21), ten 150 g clear jars (₹944.00) and ten Eco C1 wicks (₹59.00): ₹1,703.21 before any oil. Every candle at 8% (12 g of oil, 138 g of wax), unless an oil's page states a lower maximum, in which case test that oil at its own top figure and note it. CSI 464 states a fragrance load "up to 10%"; if your wax allows more, the round still runs at one common load, because the question is which oil throws better at the load you can afford.

The paperwork half: what to ask every supplier

Ask every supplier the same questions in the same words, in writing, and record the answers on one sheet. A supplier's answer, and the time it takes, is part of the comparison. None of these questions is unusual for a wholesale buyer to ask.

Three notes. IFRA wording on a page is not a certificate: many pages, CSI's included, use phrases like "IFRA-certified" or "IFRA compliant"; ask for the document for the oil you intend to use. Perfume rates are not candle loads: perfume-grade listings often quote 15% to 25%; those are perfume figures, and a comparison that tests them at candle loads is fair only if the supplier states a candle load too. Stock is a snapshot: check it again four weeks after the first check, because a supplier that is always "restocking next week" on your winner is a reorder risk.

Comparing price honestly: per candle, not per gram

Price per gram is where most comparisons start and too many end. Two adjustments make it honest. First, cost per candle at the load that passed your blind round. Second, delivery spread across the order, at the size you will actually buy.

Oil P is cheaper per gram and ₹7.50 dearer per candle, ₹750.00 per 100 candles, and it runs at the top of a 10% ceiling where sweating is more likely. The same logic applies to delivery: in a worked example, a ₹150.00 delivery charge adds ₹0.15 per gram to a 1 kg order and ₹0.03 per gram to a 5 kg one. Ask each supplier for the charge to your pincode; one of the reviews on CSI's own store says our "delivery charges are very high", and another asks us to work on "pricing and delivery timelines". Put delivery in your sheet for us as for everyone.

Finally, compare at the same size. If one supplier lists 1 kg as its largest size and another lists 5 kg, compare per gram at the size you will actually order, and ask the first for a written quote at your volume. CSI's largest listed oil size is 1 kg; anything larger is a quote on WhatsApp, which we will not pre-empt in a blog post.

Where CSI stands, stated honestly

We will not describe any other supplier. Here is CSI's side of your paper half, from our own catalogue on 25 September 2026, including the parts that do not flatter us. Use it to fill our column; ask the same questions of everyone else.

What that adds up to, in our own judgement: CSI is set up for makers who test at 15 g or 50 g and buy in 500 g and 1 kg steps, with a wide range in stock at those sizes, stated loads on about half the pages, and documents on request. If your business needs published lot data, listed prices above 1 kg or measured performance data, ask us on WhatsApp what we can provide, and weigh the answer against what others provide. Choosing one supplier for a whole multi-collection range raises further questions, covered in the guide to what to check before placing a bulk order with one supplier.

The scorecard and the decision

Performance first, as a gate; commercial terms second, as a weighted score among the suppliers that passed the gate. The weights below are a starting point for a small business selling container candles; change them before you open the key, not after.

The winning oils still go through your own approval before they enter the range (How to Qualify a New Fragrance Oil Before Adding It to Your Candle Business). Two rules keep the scorecard honest. A supplier cannot buy its way past the gate: a low price never rescues an oil that failed blind. And two suppliers within a few points of each other are, for practical purposes, tied; split your range between them rather than pretend the scorecard is more precise than it is. In our judgement, many small businesses are best served by a main supplier for most scents and a second for two or three that the first could not match, which also protects against a stock-out.

CSI samples to put in your round

One CSI sample for each row of the illustrative grid, and the jar we would run the whole round in. Oils are chosen because their scent types are widely sold (so there is a like-for-like to compare), their pages state a candle load, and every size was in stock on 25 September 2026; not on throw, which CSI has not measured. Candle counts assume 150 g at 8%.

Frequently asked questions