Physician-formulated feminine care · pH-balanced · Sulfate & paraben free

The Science

Research & Testing

How Dr. Roberts develops and pH-tests the Gentle Foam Wash, blending 23 years of OBGYN care, materials science, and real patient feedback into a gentle formula.

A gloved hand pipetting a pale pink liquid during pH testing

The Gentle Foam Wash did not start in a marketing meeting. It started in an exam room, with the same questions patients asked Dr. Roberts again and again about feeling fresh and comfortable without irritating the most delicate skin they have. What follows is an honest look at how the wash is developed and tested, so you can understand the care behind the bottle.

How is the Gentle Foam Wash developed?

It is developed by combining Dr. Roberts’ 23 years of OBGYN practice with her background in materials science and engineering, then refining the formula through real patient feedback. The goal is everyday comfort and freshness for external skin, not treating any medical condition.

Most intimate washes are designed the way other body products are, then simply labeled for the intimate area. Dr. Roberts works in the other direction. She begins with the skin itself, the questions she hears in clinic, and a simple, gentle-first rule, then builds the formula to fit.

That gentle-first philosophy is why the wash is made without sulfates, parabens, and added dyes. The full ingredient list (INCI) is confirmed on the packaging and available on request. You can read more about each choice on our [/science/ingredients] page.

What does pH testing mean, simply?

pH is just a scale from very acidic to very alkaline. pH testing means measuring where a product lands on that scale and adjusting the formula until it sits in the gentle, mildly acidic range that is friendly to external intimate skin.

Here is the everyday picture:

  • The external vulvar skin is naturally mildly acidic.
  • Ordinary bar soap is often quite alkaline, which can leave delicate skin feeling tight or dry.
  • The Gentle Foam Wash is pH-tested and formulated to stay in that gentler, lower range so the area is left feeling clean and comfortable.

To be clear, pH testing is about how the wash feels and behaves on the outside skin. It is not a treatment for the vagina, which is self-cleaning and should never be washed inside or douched. If you ever notice itching, odor, burning, or unusual discharge, please see your own doctor, since those are questions for an exam, not a wash.

How does patient feedback shape the formula?

Real-world feedback is the final filter. After the formula meets its gentle-first and pH targets, it is refined based on how people describe using it day to day, from the feel of the foam to how the skin feels afterward.

Two and a half decades of clinical conversations taught Dr. Roberts what people actually want from intimate care: something that feels light, rinses clean, has a scent you can choose or skip, and never stings. That insight shapes practical decisions, like offering both a Fresh Scent and a [/shop/fragrance-free] option for those with the most sensitive skin. You can explore the full lineup on the [/shop] page.

Is this the same as a clinical drug trial?

No, and we will always be straight with you about that. The Gentle Foam Wash is a cosmetic hygiene product, so it is developed with rigor, but it is not studied or sold as a medicine.

That honesty matters. A drug trial tests whether a medicine treats or prevents a disease. This wash makes no such claims. It is designed to support comfort, freshness, and gentleness while respecting the skin’s natural pH on the external area only. What we can speak to confidently is the development discipline behind it: a clinician’s clinical experience, a materials scientist’s eye for formulation, deliberate pH testing, and ingredients chosen by what we leave out as much as what we put in.

For more on the standards we hold ourselves to, visit [/science/quality-standards], and to meet the person behind the formula, see our [/about] page.

The short version

The Gentle Foam Wash is built gentle-first, pH-tested to sit near the naturally mildly acidic range of external intimate skin, and refined through real feedback from real people. It is a cosmetic made with a scientist’s care, not a medicine, and it is meant for external use only.

If that thoughtful, no-shortcuts approach is what you have been looking for, we would love for you to try it. Browse the full collection on the [/shop] page, or visit our [/faq] if you still have questions. Your comfort is worth the extra care, and that is exactly the standard this wash is held to.

Frequently asked

How is the Gentle Foam Wash tested?

Each formula is pH-tested so it sits near the naturally mildly acidic range of external intimate skin, and it is refined through everyday use and patient feedback. It is a cosmetic developed with rigor, not a drug.

What pH is the wash made to match?

It is formulated to stay in a gentle, mildly acidic range that is friendly to the external vulvar skin, rather than the high alkaline pH typical of ordinary bar soap. This helps the area feel comfortable and fresh.

Has the wash been through a clinical trial?

No. It is a cosmetic hygiene product, not a medicine, so it is not studied as a drug. It is developed with clinical insight, materials-science discipline, and pH testing, and is meant for external comfort and freshness.

Shop the Gentle Foam Wash