When a shampoo costs less than a coffee, someone along the chain has given something up. It isn't magic, and it isn't simply "economies of scale" — it's a series of decisions about formulation, packaging and distribution that make that price possible. Understanding what they are helps you compare with judgement, not just intuition.

This article doesn't single out any brand. It explains, from basic cosmetic formulation principles, what usually sits behind a very low price — and why working at a small scale allows for different priorities.

The cheapest ingredient in any formula is water

Most liquid cosmetics — shampoos, gels, creams — use water as a base, often 60% to 90% of the formula. That's a legitimate ingredient: it dilutes active compounds, gives texture and makes a product usable. The issue isn't that a product contains water, but when water is used to maximise volume at the expense of active concentration.

A heavily diluted formula lets a manufacturer produce more litres for the same cost of active raw material. The result is a product that "goes a long way" but needs more of it per use to notice the same effect — something that rarely shows up in the real price per litre.

Surfactants drive much of the cost — and the gentleness

The surfactant is the ingredient that makes a shampoo or soap clean, foam and lift grease. Low-cost synthetic surfactants exist, very effective at cleaning but harsher on the skin and scalp's natural barrier with continued use. Plant-derived surfactants — from coconut, sugar or vegetable oils — also exist, gentler but significantly more expensive to produce and formulate stably.

Choosing the surfactant is probably the single decision with the biggest impact on the cost of a personal-care product. It's also one of the least visible, since on the INCI list it appears as a technical name few people recognise at a glance.

Packaging has a price too — and an environmental consequence

Large-scale production favours single-use plastic packaging: light and cheap to manufacture at volume, but with a limited life cycle. Recyclable, refillable or glass formats cost more per unit, especially in small batches, because they don't benefit from large manufacturers' economies of scale.

There's no single formula here — each brand decides what to prioritise. But a very cheap package is rarely a coincidence, and its environmental cost gets paid at a different point, not at the supermarket till.

Producing at small scale shifts priorities, not just price

A small workshop making limited batches can't compete on unit price with an industrial plant producing hundreds of thousands of litres. But that same small scale allows direct control over every batch, and a real, ingredient-by-ingredient INCI review.

At Natura Esencials, when a fragrance supplier doesn't hold its own ISO 16128 certification, the naturalness percentage is calculated molecule by molecule from the safety data sheet (SDS), rather than taking the supplier's figure at face value. It's a slower, more expensive process than simply accepting that figure, but it's what allows us to state precisely what is natural in a product and what isn't.

This doesn't automatically make artisanal "better" for every use — it makes the price a logical consequence of a different process, not a whim.

How to read a low price without falling into the myth or the opposite extreme

Not every cheap product is bad, and not every expensive one is justified. A few signals help build your own judgement: check the first ingredients on the INCI list, since these are present in the highest proportion; check whether a brand states its naturalness percentage and how it's calculated, not just whether it mentions one; and keep in mind that a very low price sustained over time almost always implies industrial production volume, a diluted formula, or low-cost packaging — usually a combination of the three.

A purchasing decision, not a moral judgement

Choosing a supermarket product on price is a perfectly reasonable decision, especially on a tight budget or for occasional use. This article isn't meant to question that choice — it's meant to add information that usually isn't visible: what makes that price possible, and what you get, and don't get, in return.

Knowing that difference lets you decide with judgement at every purchase — whether you're prioritising price, composition, environmental impact, or a mix of the three.

→ See how we calculate naturalness ingredient by ingredient

Natura Esencials · Artisanal cosmetics and home care · Marbella, Andalucía