Frequently Asked Questions

If you’re new here, you may be arriving with questions—or simply a sense that your body feels different than it used to.

Nancy Chun Formula was created to offer steadier support during seasons of change, without pressure, noise, or overpromising. There’s no rush. Take what’s useful, and move at a pace that feels supportive.

What is the Nancy Chun Formula?

Nancy Chun Formula is a collection of thoughtfully developed products created to support women through periods of change—especially the seasons where your body feels different than it used to.

This isn’t about “fixing” you. It’s about creating support that feels steady, simple, and grounded in real life.

Yes. These areas have thinner, more delicate skin, so our products are carefully formulated to be gentle and non‑irritating.

  • Free from harsh ingredients: Formulas avoid irritants, chemicals, added fragrances, and estrogen—including plant-based sources—that could affect the skin
  • Dermatologically tested: Products are reviewed and tested for safe external use
  • Supports comfort: Designed to maintain hydration, barrier function, and overall skin comfort in intimate areas

Our products are safe for use on all delicate areas, including the vulva, perineum, and anal skin.

No. Nancy Chun Formula products are not intended to diagnose, treat, cure, or prevent any disease.

They’re designed to support your day-to-day well-being and routines with care and intention. If you’re managing a medical condition or have concerns, it’s always best to partner with a qualified medical professional.

Yes. Clinical practice guidance from respected medical organizations recognizes moisturizers as a helpful, first-line option to support hydration and comfort.

  • National Comprehensive Cancer Network (NCCN): Recommends non‑hormonal treatments, including moisturizers containing hyaluronic acid, to help relieve dryness and genitourinary symptoms as part of survivorship care.
  • Sexual health and menopause societies: Organizations like the International Society for Sexual Medicine (ISSM), the International Society for the Study of Women’s Sexual Health (ISSWSH), and the North American Menopause Society (NAMS) support clinical guidance that recognizes symptoms such as dryness and irritation as part of women’s sexual health and encourages symptom‑focused care that often includes moisturizers.

These expert groups support the use of moisturizers — including formulations with ingredients such as hyaluronic acid, fatty acids, ceramides, cholesterol, or zinc oxide — as part of an approach to help maintain hydration, comfort, and resilience in intimate skin.

Some women notice subtle shifts quickly, while others experience more gradual change over consistent use.

Support that lasts tends to build over time—and the goal is steadiness, not intensity.

With regular use, you should see improvement within two weeks.

Many formulas are designed with sensitivity in mind, but every person’s skin is unique. We recommend patch testing when trying any new skincare product and reviewing the ingredient list if you have known sensitivities.

Mild stinging and irritation may occur when you start using the products. This is due to microtears in the skin related to dryness. With consistent use of the products, the stinging should resolve. Contact our healthcare provider if the symptoms do not resolve after two weeks of regular use.

Intimate skin—including the vulva, perineum, and surrounding areas—relies on estrogen to stay healthy and comfortable:

  • Hydration and tissue support: Estrogen helps maintain moisture, elasticity, and barrier function
  • Microbiome support of beneficial bacteria: Supports glycogen in vaginal and adjacent tissues, which feeds lactobacillus and keeps pH balanced
  • Hyaluronic acid support: Estrogen promotes the production of hyaluronan synthase, the enzyme that generates hyaluronic acid in the skin and mucosal tissues. Maintains natural hydration, plumpness, and elasticity.
  • Barrier protection: Strengthens the skin’s protective layer, reducing dryness and sensitivity

Dryness in the intimate area results from both direct and indirect effects of estrogen:

  • Direct effects on skin: Lower estrogen reduces barrier function, collagen, and natural hydration, leaving skin thinner, drier, and more sensitive
  • Indirect effects via bacteria and pH: Estrogen decline reduces glycogen, which decreases lactobacillus and increases pH, worsening dryness and irritation
  • Combined impact: These changes make intimate skin more prone to sensitivity, discomfort, and dryness during hormonal fluctuations

Understanding both the direct and indirect effects of estrogen helps explain why intimate skin can feel particularly dry and sensitive, and why supporting hydration and barrier function is important.

pH measures how acidic or alkaline a substance is on a scale from 0 to 14:

  • Neutral: 7 is neutral, like pure water
  • Acidic: Values below 7 are acidic
  • Alkaline (basic): Values above 7 are alkaline

Understanding pH helps explain why maintaining a slightly acidic environment is important for intimate skin health.

Maintaining a healthy pH helps keep intimate skin balanced and comfortable:

  • Supports beneficial bacteria: A slightly acidic pH helps lactobacillus thrive, protecting against irritation and harmful bacteria
  • Reduces dryness and sensitivity: Products that respect natural pH help maintain moisture and comfort
  • Protects tissue health: Balanced pH contributes to the resilience of the vulva, perineum, and vaginal tissues

Using products that support natural pH can help intimate skin feel healthy, comfortable, and less prone to irritation

The vaginal pH is naturally acidic (around 3.8–4.5) during reproductive years, which helps protect against harmful bacteria and infections. This acidity is maintained by estrogen, which supports the growth of Lactobacillus, the beneficial bacteria that produce lactic acid.

As a woman ages—especially during and after menopause—estrogen levels drop, leading to:

When estrogen levels drop there is less Lactobacillus produced.

With less lactobacillus there is Less lactic acid production leading to a Higher (more alkaline) vaginal pH, often rising above 5.0.

This shift can make the intimate area more vulnerable to dryness, irritation, and even infections like bacterial vaginosis or urinary tract infections.

The female genital microbiome consists of the communities of bacteria and other microorganisms that inhabit the vagina, vulva, and perineum, collectively supporting overall genital health and protection against infection.

  • pH-dependent balance: A healthy, slightly acidic vaginal pH helps beneficial bacteria, like lactobacillus, thrive, which helps protect against infections.
  • Impact of estrogen decline: When estrogen drops, pH can rise (become more alkaline), weakening the vaginal microbiome
  • Effect on the skin and mucosa: A disrupted microbiome can make the vaginal, vulvar, and perineal tissues more prone to dryness, sensitivity, and irritation

Supporting natural pH and hydration helps maintain a balanced genital microbiome and healthier, more comfortable intimate skin.

Intimate dryness is very common. Studies suggest that the majority of women will experience some degree of dryness or discomfort at some point in their lives.

Yes. While hormonal changes like menopause, postpartum, or menstrual fluctuations are common causes, intimate dryness can also occur in many other situations:

  • Medical conditions: Autoimmune disorders (like Sjögren’s syndrome, lupus, rheumatoid arthritis), gastrointestinal conditions (IBS, inflammatory bowel disease), diabetes, thyroid disorders, heart failure, and chronic kidney disease can reduce natural moisture in the intimate area
  • Cancer treatments: Endocrine therapy commonly used in breast cancer treatment, chemotherapy, or pelvic radiation may affect tissue health and hydration
  • Early ovarian changes: When the ovaries stop producing estrogen earlier than usual—due to medical conditions or surgery—intimate skin may become drier and more sensitive.
  • Lifestyle and environmental factors: Smoking, alcohol use, high levels of physical activity, or prolonged use of harsh soaps can affect moisture and barrier function
  • Nutritional factors: Deficiencies in key nutrients such as vitamins A, D, E, essential fatty acids, zinc, and protein may impact skin and mucosal hydration, contributing to dryness
  • Individual variation: Everyone’s body is different, and some people may experience dryness for reasons unrelated to hormones

Regardless of the cause, supporting hydration, barrier function, and overall comfort can help maintain healthy intimate skin.

Yes. The skin around the anus is delicate and can become dry, sensitive, or irritated, just like other intimate areas. It’s very common for women to experience dryness in this area.

  • Similar skin structure: The anal skin shares characteristics with vulvar and perineal skin, making it prone to dryness and sensitivity.
  • Common causes: Friction, certain medications, medical conditions, or age-related changes can all contribute to dryness.
  • Supporting hydration: Products designed for intimate skin can help maintain comfort, moisture, and barrier function in the anal area as well.

Our products are formulated to be safe and gentle for all intimate areas, including the vulva, perineum, and anal skin.

All of our products are manufactured in the United States in accordance with FDA cosmetic manufacturing guidelines.