With rising awareness about long-term exposure to synthetic chemicals, everyone seems to be looking for 'natural' switches. Whether that is in food, clothing, or cosmetics, the trend is clear. But with increased demand, you often find a lot of spurious supply as well.

The word "natural" is the most overused and least regulated term in the Indian skincare industry. It appears on packaging, in ads, and across entire brand identities, often without meaning much at all.

So how do you know whether your product’s ‘natural’ claim is a fact or a marketing decision? Let’s go with soap as a product and break it down.

What “natural” should mean

A natural soap is one made from ingredients that come from nature and haven’t been chemically synthesised in a lab. The core of any real soap is a reaction between oils (or fats) and an alkali - usually sodium hydroxide, commonly called lye. This reaction is called saponification, and it’s been around for thousands of years.

The oils in natural soap usually come from plants like coconut, olive, avocado, rice bran, sunflower, etc., but they may also use animal products like goat milk. The scent comes from essential oils - compounds extracted directly from plants through steam distillation or cold pressing. The colour, if any, comes from clays, herbs, or botanical tinctures. Everything in the bar can be traced back to something that grew - sometimes including the lye.

Lye is traditionally made by dissolving wood ash in water, though modern industrial processes use the electrolysis of salt water to create lye. For the chemistry nerds: 2NaCl + 2H₂O = 2NaOH + Cl₂ + H₂.

The problem is that the word “natural” has no legal definition in India’s cosmetics regulations. Any brand can use it, and most do.

Where it starts to get murky

There’s a spectrum between “completely natural” and “completely synthetic,” and most commercial soaps sit somewhere in the middle without telling you where.

Here are the common grey areas:

“Fragrance” or “Parfum” on the label

This is the single biggest red flag. Under Indian and international cosmetic labelling norms, the word “fragrance” can legally cover hundreds of synthetic aroma chemicals that the manufacturer doesn’t have to disclose on the label. When a soap lists “fragrance” as an ingredient, it is likely to be a blend of lab-synthesised compounds, some of which have been linked to skin sensitisation and allergic reactions. If a soap uses real essential oils for its scent, the label will usually name them specifically - lavender oil, eucalyptus oil, cedarwood oil.

“Derived from” language

An ingredient can be “derived from coconut” and still be a heavily processed surfactant that looks nothing like the coconut it started as. Sodium lauryl sulfate, for example, can technically be coconut-derived, but by the time it reaches your soap, it’s been through multiple chemical transformations. “Derived from” tells you the origin story - but you don’t yet know if this is a superhero or villain, or something in between, like a wolf in sheep’s clothing.

“Sandalwood” soaps with no sandalwood

This one is worth pausing on. There are sandalwood soaps that have been household names in India for decades. Generations have grown up with them. But if you look at the actual ingredient list, you’ll often find the phrase “sandalwood oil-based fragrance” rather than “sandalwood essential oil” or “Santalum album oil.”

It may not seem like a big difference, but one is a synthetic fragrance engineered to smell like sandalwood, while the other is oil extracted directly from the wood of the sandalwood tree. They smell similar but are not the same. Real sandalwood oil has restorative properties well documented in Ayurveda for being anti-inflammatory and anti-microbial - the engineered oil does none of this. And technically, the label isn’t lying, it says “sandalwood oil-based fragrance” right there. Most people just don’t know what that really means.

“Handmade” and “artisanal”

These terms suggest care and craft, but they don’t tell you anything about ingredients. A soap can be handmade and still contain synthetic fragrance, artificial colourants, and chemical preservatives. Handmade describes the process. Natural describes the ingredients. They’re not the same, but they sometimes seem interchangeable.

What actually makes a soap natural

If you want to cut through the noise, here’s what to look for:

The oil base

A natural soap will list its carrier oils by name - coconut oil, olive oil, avocado oil, sunflower oil, shea butter, and mango butter, for example. These are the oils that become soap through saponification, and any unsaponified portion stays in the bar as a moisturising agent (this is called superfatting, and it’s a deliberate choice in well-made soap).

The scent source

Look for essential oils listed by their plant name - eucalyptus, cedarwood, rosemary, peppermint, lavender. If the only scent reference is the word “fragrance” or “parfum,” the scent is synthetic. 

The process

Cold process soap retains the natural glycerin produced during saponification - a genuine moisturiser that most commercial soap manufacturers strip out and sell separately. Cold process soaps also require a curing period of four to six weeks, which is why they’re more expensive and less common. Commercial soap can be made in hours. Real cold-process soap takes weeks. The time is part of the product.

What’s not on the list

A genuinely natural soap won’t contain sodium lauryl sulfate (SLS), parabens, EDTA, synthetic fragrances, or artificial colourants. If the ingredient list is short enough that you can read it in under ten seconds and recognise every item on it, that’s usually a good sign.

Why this matters for your skin

Natural or not natural - why should you care?

Synthetic fragrances are among the most common causes of contact dermatitis - skin irritation, redness, and allergic reactions that people often blame on “sensitive skin” when the real issue is what they’re washing with. Sulphates strip the skin’s natural oils far more aggressively than saponified plant oils do, which is why people often feel tight and dry after a shower and then reach for moisturiser to fix a problem their soap created. Which is probably made from the glycerin that their soap manufacturer stripped out and sold to their lotion manufacturer.

Indian skin, particularly in humid climates, has specific characteristics like higher melanin content, a tendency toward oiliness in the T-zone, and regular exposure to hard water. A formulation designed with these factors in mind will behave differently on your skin than one designed for a European or North American market and sold in India without reformulation.

How to read a soap label in 30 seconds

The next time you feel overwhelmed by the cosmetics aisle, remember this; 

Simple, Smell, Short, and Sorting. 

Simple: Are the oils familiar? If the ingredient list leads with recognisable plant oils and butters, that’s the foundation of a natural soap.

Smell: Where does the scent come from? If you see specific essential oil names, the scent is plant-based. If you see “fragrance” or “parfum” standing alone, it’s synthetic.

Short: How big is the list? A genuinely natural soap typically has between five and ten ingredients. If the list runs to twenty or thirty items with names you can’t pronounce, the bar is doing more chemistry than it needs to.

Sorting: Where are the ingredients on the list? By regulation, manufacturers have to list the ingredients in descending order of composition. So if your olive soap lists olive oil as the last ingredient, that’s not a good sign. That being said, essential oils are added in very small quantities in soap by design. They are super concentrated and NEED to be diluted by the base oils. So if essential oil is at the bottom of the list, that is to be expected. Too much EO can cause severe irritation.

The Macha Manual is where we break down what goes into skincare — the ingredients, the processes, and the questions worth asking. No jargon for its own sake. Just the stuff that actually matters for your skin.