I appreciate beer for its naturally occurring sugars, which originate from the malted grains used in the brewing process. Here’s a brief overview of how those sugars are created:

Malted Barley
The primary source of sugars in beer is malted barley. During malting, barley grains are soaked in water to encourage germination and then dried in a kiln. This process converts starches within the grain into fermentable sugars, such as maltose.

Brewing Process
During mashing, the malted barley is mixed with hot water, allowing those sugars to dissolve into a liquid known as wort.

FermentationYeast is added to the wort, where it consumes much of the sugar and produces alcohol and carbon dioxide. Some residual sugars remain in the finished beer, contributing to its flavor profile.

How This Translates to Soapmaking

In soapmaking, the residual sugars found in beer and wine can contribute to improved lather characteristics. Sugars are known to support a richer, creamier lather, and I’ve consistently observed this effect in both my beer and wine soaps. Wine behaves similarly due to its naturally occurring sugars.

When it comes to skin-related effects, however, I do not believe meaningful benefits are likely from washing with soap made with beer or wine. If any benefit were to occur, it would be far more plausible through prolonged contact—such as soaking or bathing—rather than through a rinse-off product like soap.

So why use beer and wine at all?

The answer is simple: lather quality and formulation behavior, not skin claims.

Beer naturally has a lower pH, typically ranging from about 4.0 to 4.5, with some sour beers measuring even lower due to lactic acid produced during fermentation. Wine falls into a similar pH range, generally between 3 and 4, due to naturally occurring acids such as tartaric, malic, and citric acids found in grapes.

These acidic liquids behave well in soap formulations and contribute to the unique characteristics of the finished bars—particularly in terms of lather and overall formulation interest—without implying added skin benefits.

Polished Rewrite

Many soapmakers and users share positive personal experiences with beer soap, often describing preferences related to feel or use. These observations are anecdotal and are not supported by rigorous scientific evidence, but they continue to attract interest from those curious about beer-based soaps.

My reason for using beer is far simpler and more practical. I don’t rely on anecdotal claims when formulating soap. I use beer because of the way its naturally occurring sugars contribute to a rich, creamy lather—something I genuinely enjoy both as a soapmaker and as a user.

The idea of making soap with beer has become increasingly popular within artisanal and handmade soap communities. It’s common to hear claims that ingredients found in beer—such as hops, yeast, or certain vitamins—might provide skin-related benefits. However, soap is a rinse-off product, meaning it does not remain on the skin long enough for ingredients to be absorbed in a meaningful way, even if those ingredients were proven beneficial in other contexts.

For that reason, I do not believe beer soap provides significant skin benefits, and I do not make claims suggesting otherwise.

My intention isn’t to dismiss personal beliefs or diminish anyone’s enjoyment of beer soap. Rather, my goal is transparency. I focus on making and selling products I genuinely enjoy creating—products my family and I use ourselves—while being honest about what soap can realistically do and what it cannot.

Beer Itself vs. Beer in Soap: Setting the Record Straight

To clarify, the following characteristics are associated with beer itself, not with soap made using beer. While these components may exist in beer, their relevance in soap is limited due to the soapmaking process and the fact that soap is a rinse-off product.

Hops

• Characteristics: Hops are often discussed for their anti-inflammatory, antibacterial, and antioxidant properties.

• Context: While these properties are studied in other applications, the concentration and contact time in soap are too limited to expect meaningful effects.

Yeast

• Characteristics: Brewer’s yeast contains B vitamins, including niacin (B3).

• Context: Although B vitamins are widely studied in nutrition and skincare, they are not reliably preserved or delivered through the soapmaking process.

Antioxidants

• Characteristics: Beer contains naturally occurring antioxidants.

• Context: Antioxidants are often highlighted in scientific literature, but soap does not provide the prolonged contact needed for these compounds to function as they might in other formats.

Sugars and Amino Acids

• Characteristics: Beer contains residual sugars and amino acids.

• Context: In soapmaking, these sugars are valued for their ability to support a richer, creamier lather—one of the practical reasons beer is enjoyed as a soapmaking ingredient.

Low pH

• Characteristics: Beer is mildly acidic.

• Context: While acidity is sometimes discussed in relation to skin, the final pH of soap is determined by saponification, which neutralizes many of the original properties of the liquid used.

So, is anyone here up for soaking in a vat of beer?
Just remember — no sipping while you soak! 😄 🍺

Lack of Direct Evidence
There is limited scientific research specifically examining the effects of beer used in soap on the skin. Most claims associated with beer soap are extrapolated from studies on individual beer components in entirely different contexts, rather than from research on beer soap itself.

Impact of the Soapmaking Process
The saponification process—the chemical reaction that converts fats and lye into soap—significantly alters the original ingredients. As a result, it is unclear which properties of beer ingredients, if any, remain after soapmaking, in what form they exist, or whether they are available to the skin during the brief contact time of a rinse-off product.

While beer can influence certain characteristics of soap, any direct skin-related effects are likely minimal or nonexistent. The saponification process alters the original chemical composition of beer, and soap’s nature as a rinse-off product further limits prolonged interaction with the skin. For these reasons, beer is better understood as a formulation ingredient that contributes to texture, lather, and overall aesthetic appeal rather than as a source of skincare benefits.

Claims surrounding beer soap are largely based on the known properties of beer’s individual components or on anecdotal user experiences, rather than on direct scientific evidence evaluating beer in soap itself.