For most people, choosing between bar soap and body wash feels like a simple preference.

But the truth is, the difference between these two products touches on skin health, ingredients, environmental impact, and long-term sustainability.

At Crate 61, we spend our days thinking about soap - how its made, what goes into it, and how it affects both people and the planet. This guide walks through the real differences between bar soap vs body wash, so you can make an informed choice.

Quick Answer: Is Bar Soap or Body Wash Better?

In most cases, high-quality bar soap is the better option. Bar soap generally uses fewer synthetic stabilizers and preservatives, requires less packaging and plastic, is more concentrated, and often contains simpler ingredients. Body wash, by contrast, is mostly water combined with detergents, stabilizers, and preservatives to maintain shelf life in liquid form.

What Is the Difference Between Bar Soap and Body Wash?

Bar Soap

Traditional bar soap is made through saponification, where oils react with an alkaline solution to create soap. Many premium soaps, including cold process varieties, retain naturally produced glycerin that helps moisturize skin. Typical ingredients include plant oils, mineral ingredients, and natural fragrances or essential oils.

Body Wash

Body wash is essentially a liquid detergent system. Since it is mostly water, manufacturers must add stabilizers and preservatives to keep the formula shelf-stable. Typical ingredients include water, surfactants (cleansing agents), stabilizers, preservatives, and fragrance blends.

Is Bar Soap Better for Your Skin?

This depends largely on the quality of the soap. Poorly made bar soap can feel drying, but well-crafted cold process soaps often retain natural glycerin and plant oils that help maintain skin balance. Cold process soap is particularly valued because the method preserves the integrity of natural oils, retains naturally occurring glycerin, and requires less heat during production.

Many people find that plant-based bar soap leaves skin feeling cleaner without the heavy residue sometimes associated with liquid cleansers.

Is Bar Soap More Hygienic Than Body Wash?

A common myth is that bar soap is less hygienic than body wash. This has been studied directly, and the consistent finding is that bar soap doesn't meaningfully transfer bacteria between users in normal use. Soap works by lifting oils, dirt, and microbes from the skin, allowing them to be rinsed away with water. As long as the bar is allowed to dry between uses, it remains perfectly hygienic for everyday personal care.

Bar Soap vs Body Wash: Environmental Impact

Plastic Packaging

Most body washes are packaged in single-use plastic bottles. Billions of these bottles are produced each year, and many ultimately end up in landfills or oceans. Bar soap can be packaged in paper-based packaging that significantly reduces plastic waste.

Water Content

Body wash is largely water. Transporting water-heavy products requires more energy for shipping and storage. Bar soap is a concentrated product, meaning less packaging, lower transport weight, and less energy used in shipping.

Longevity

Because bar soap is concentrated, a single bar often lasts longer than a bottle of body wash. This means fewer products purchased and less packaging used over time.

This means fewer products purchased and less packaging used over time.

Do Dermatologists Recommend Bar Soap?

Dermatologists typically emphasize ingredient quality rather than product format. A well-formulated bar soap made with mild ingredients can be excellent for daily cleansing. Dermatologists we've spoken with tend to care less about bar vs. bottle and more about the ingredient list itself, fewer additives, no unnecessary fragrance. Choosing soaps made with plant oils and gentle formulations can make a significant difference.

Why Many People Are Returning to Bar Soap

In recent years, many consumers have begun returning to bar soap for several reasons: reduced plastic waste, simpler ingredient lists, travel convenience, and longer product lifespan. We've watched this shift happen directly in our own customer base over the past several years. This shift is part of a broader movement toward more intentional personal care choices. People are increasingly asking what they're putting on their skin, how it's made, and what happens to the packaging.

The Role of Traditional Soapmaking

Not all bar soaps are created equal. Many modern soaps are made through industrial processes that remove glycerin and add synthetic detergents. Traditional cold process soapmaking, however, preserves the natural structure of the soap. This method maintains naturally occurring glycerin, preserves plant oil properties, and requires less energy during production. Cold process soap has been used for centuries because it produces gentle, effective cleansing bars.

Final Verdict: Bar Soap vs Body Wash

Both bar soap and body wash can clean effectively. But when comparing ingredient simplicity, packaging impact, and concentration, well-crafted bar soap often comes out ahead. For people looking to simplify their personal care routine while reducing reliance on plastic packaging, bar soap offers a practical and time-tested solution.

Since 2013, our own customers have kept more than 18 million plastic bottles and 3,150 tonnes of plastic out of landfills just by making this one switch.