The Science Behind AHA Deodorant | Frank + Bare’s Aluminium-Free Odour Control

Clinically proven to reduce body odour, that is the science that inspired Frank + Bare. A published clinical study in the International Journal of Cosmetic Science found that maintaining a mildly acidic skin surface (around pH 4.0) led to a significant reduction in body odour among participants¹. The researchers confirmed that supporting the skin’s natural acid balance, the same way alpha hydroxy acids (AHAs) do, is an effective and gentle way to keep odour-causing bacteria in check.

That discovery inspired us to create an AHA deodorant that goes beyond masking smell to actually stop odour at its source. By working with your skin’s natural pH instead of against it, our formula maintains a healthy acid mantle, supports a balanced microflora, and keeps your underarms feeling smooth, fresh, and protected all day.

Why Our Formula Is Different

Most natural deodorants rely on baking soda or clays to absorb odour and sweat. While these can work temporarily, they often disrupt the skin’s natural pH and cause irritation.

Frank + Bare took a different approach. Instead of absorbing sweat, our formula targets the bacteria that cause odour. By gently maintaining the skin at a slightly acidic pH, we create an environment where those bacteria cannot thrive, offering long lasting freshness that supports your skin instead of stripping it.

The Power of Fruit Acids (AHAs)

To achieve this, we use natural fruit acids, AHAs, derived from bilberry, lemon, orange, sugar cane and sugar maple. These hardworking ingredients are our heroes. They naturally support your skin’s pH, strengthen the barrier, help prevent irritation, and keep odour at bay.

By contrast, many natural deodorants use baking soda or magnesium which raise the underarm’s pH from acidic to alkaline. Because skin is naturally acidic, this can damage the protective barrier and trigger the red itchy rash so many users experience.

Odour Control, On Demand

Forgot to apply deodorant in the morning? Do not stress, just reach for Frank + Bare. Our AHA deodorant works quickly to rebalance the skin’s pH, reducing odour-causing bacteria and neutralising odour fast, with no masking and no compromise.

Skincare Benefits for Your Underarms

• Gentle exfoliation: AHAs remove dead skin build up which helps prevent ingrown hairs.
• Brightening: Encourages a more even tone and helps reduce underarm hyperpigmentation.
• Hydration: A healthy acidic pH strengthens the barrier and improves moisture retention.
• Antioxidant protection: Fruit acids support the skin’s natural defences.

Think of it as a daily micro peel for your underarms, keeping skin healthy, balanced and glowing.

A Modern Approach to Natural Deodorant

We believe deodorant should be more than odour protection. Our AHA deodorant combines effective, aluminium free odour control with real skincare benefits. It is a fresh, science backed alternative that works with your body, not against it.

Shop Frank + Bare’s AHA Deodorant and give your underarms the luxury care they deserve.