The underarm region may develop discoloration and uneven patches, causing women to feel self-conscious when donning sleeveless attire and resulting in a significant loss of aesthetic appeal. Consequently, women are constantly exploring various remedies to address underarm discoloration. One commonly employed solution is baking soda, known for its effectiveness in lightening underarm discoloration.
What causes dark underarm skin?
Underarm discoloration is a condition where the skin beneath the arms appears darker than the surrounding skin, creating a patchy and uneven appearance. This can make women feel self-conscious and uneasy when wearing sleeveless or snug-fitting clothing.
The darkening of underarms is attributed to the use of deodorant products, tight clothing, frequent hair removal, excessive sweating, and similar practices. These actions can harm the delicate skin under the arms, leading to discoloration and the emergence of dark patches. To combat this aesthetically undesirable condition, many women resort to baking soda as a natural remedy for whitening underarms.
These activities impact the skin under the armpits, causing damage to the sensitive skin in this area. This impedes the skin’s recovery process and contributes to the development of dark and discolored patches.
Due to its significant impact on aesthetics, individuals consistently seek ways to remedy dark underarms. Among the various treatments available, women frequently turn to baking soda to whiten their underarms.
The Skin-Whitening Properties of Baking Soda
Baking soda is a commonly used ingredient in beauty regimens for women, renowned for its skin-whitening effects. It plays a significant role in reducing dark spots and soothing sunburned areas effectively.

Baking soda powder has the effect of treating dark spots.
The Skin-Whitening Properties of Baking Soda
Baking soda is a commonly used ingredient in beauty regimens for women, renowned for its skin-whitening effects. It plays a significant role in reducing dark spots and soothing sunburned areas effectively.
Exfoliating Darkening-Causing Cells
By effectively removing dead skin cells and the keratin layer on the skin, baking soda contributes to the whitening of the underarm area, promoting a more even skin tone. This, in turn, aids in the elimination of dark spots and blemishes under the armpits, fostering smoother skin in that region.
Regulating Melanin Development
Beyond its skin-whitening attributes, baking soda possesses the ability to control and inhibit the development of melanin pigments responsible for skin darkening. This preventative action curtails their growth while also regulating skin moisture and pH levels, contributing to the maintenance of smooth and healthy skin.
Antioxidant and Antibacterial Properties
Moreover, the components in baking soda boast high levels of antioxidants, which play a crucial role in preventing harmful bacteria from impacting and invading the skin. This property ensures that the skin remains clean, free of inflammation, and protected from infections in the underarm area.

Helps prevent skin aging with antioxidants.
Addressing Underarm Odor
Another advantage of utilizing baking soda for underarm whitening lies in its efficacy in neutralizing unpleasant odors in the underarm region. When employed to combat underarm odor, baking soda aids in the regulation and control of sweat glands, thereby not only addressing discoloration but also eliminating unwanted underarm odors.
Capitalizing on the skin-whitening properties of baking soda, many women have embraced and incorporated at-home underarm whitening techniques, seeking to restore confidence, achieve smoother and brighter underarm skin, and eradicate discoloration through the following methods.
Methods for Using Baking Soda to Whiten Underarms
Pure Baking Soda Application:

Baking soda powder diluted with water
Baking soda possesses potent whitening properties; therefore, when utilizing it to lighten the skin and eliminate underarm darkness, it is advisable to dilute it with clean water.
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- Begin by preparing 2 tablespoons of pure baking soda and 3 tablespoons of warm water.
- Combine these ingredients in a clean bowl, stirring until they form a smooth paste.
- Thoroughly clean the underarm area with warm water to remove any dirt and debris.
- Using a cotton pad, dry the area and apply the baking soda paste to the underarm skin.
- Massage the area in circular motions for 1-2 minutes.
- Leave the paste on for 3-5 minutes before rinsing it off with cool water.
Baking Soda and Toothpaste Combination for Underarm Whitening:
Toothpaste, renowned for its teeth-whitening and mouth-cleansing properties, can also contribute to brighter and smoother skin when applied topically. Ingredients such as sodium and silica in toothpaste aid in the removal of dead skin cells, making it effective for achieving luminous skin and addressing acne.
When paired with baking soda for underarm whitening, toothpaste not only helps eliminate dark spots but also works to curb excessive sweating, maintaining the underarm skin dry, clean, and odor-free.

Daily toothpaste with baking soda
Ingredients:
- 1 tablespoon of baking soda
- 1 tablespoon of white toothpaste (free of colored beads or additives)

You should apply this darkening mixture regularly
Instructions:
- Mix the toothpaste and baking soda to form a smooth paste.
- Cleanse the underarm area with warm water or an exfoliating scrub to remove dead skin cells and unclog pores.
- Apply the mixture to the underarm area and gently massage for 2 minutes.
- Leave the mixture on for 10-15 minutes until it dries, then rinse off with cool water and pat dry with a soft towel.
Using the baking soda and toothpaste combination for underarm whitening can be effective with a consistent application frequency of 1-2 times per week.
Note: Avoid using this method too frequently or leaving it on the skin for extended periods. Toothpaste contains acid, and excessive use or prolonged contact can lead to skin erosion, damage, and increased susceptibility to sunburn, potentially darkening the armpits.
Lemon Combined with Baking Soda
Lemons, rich in vitamin C, are known for their ability to prevent and combat skin aging, promoting a white, smooth, and firm complexion.
When paired with baking soda, lemon not only contributes to skin whitening but also aids in the removal of dead skin cells, thanks to the acidic content in lemons. This enhances the effectiveness of treating dark underarms and promotes an even skin tone.

Fresh lemon mixed with baking soda
To prepare, you will need 1 fresh lemon and 1 tablespoon of baking soda.
- Begin by mixing baking soda and pure honey to create a homogeneous mixture.
- Apply the mixture onto your underarm area, ensuring even coverage.
- Leave the mixture on for approximately 15 minutes and then rinse it off with warm water.
- Repeat this process twice a week for optimal results.
Baking soda and pure honey work in tandem to exfoliate and moisturize the skin, aiding in the lightening of dark underarms. The antibacterial properties of honey also assist in preventing unpleasant odors.
It’s essential to note that individuals with sensitive skin should conduct a patch test before applying the mixture to their underarms. Additionally, this method should not be used immediately after shaving or waxing, as it may cause irritation.
Raw Honey Combined with Baking SodaRaw honey is a versatile beauty ingredient widely used by many women at home. It possesses remarkable properties for treating acne, diminishing dark spots, and features antibacterial components that contribute to skin brightening and anti-aging effects. When combined with baking soda, it forms a compound that effectively eradicates dark spots under the armpits, promoting smooth, bright skin with tightened and firmer pores.

Baking soda mixed with wild honey
To prepare this mixture, gather the following ingredients: 1 tablespoon of raw forest honey and 1 tablespoon of baking soda. Mix them together in a bowl until a smooth paste is achieved. Begin by using an exfoliating scrub to cleanse the skin, followed by warm water to open up pores and enhance nutrient absorption. Apply the mixture evenly to the underarm area and leave it on for approximately 20 minutes. Rinse off with cool water and gently pat dry with a towel.
The combination of baking soda and honey works synergistically to whiten and eliminate dark spots in the underarm area. For optimal results, it is recommended to apply this mixture three times a week.
Coconut Oil and Baking Soda for Dark Spots
Coconut oil, a widely embraced beauty ingredient, boasts a soothing effect on the skin and is renowned for its ability to complement and correct skin imperfections. When paired with baking soda, it imparts moisturizing benefits, leaving the skin smooth and addressing dark, discolored areas. This combination proves effective in evening out the skin tone in the underarm area while maintaining the skin’s moisture balance without causing excessive dryness or irritation.
Preparation:
- 1 teaspoon of pure baking soda
- 2 teaspoons of coconut oil

Baking soda combined with coconut oil
Mix the coconut oil and baking soda together to create a uniform mixture for treating underarm dark spots. It is crucial to thoroughly cleanse the underarm area with clean water or use an exfoliating scrub to open up pores for enhanced results. Apply the mixture to the entire underarm area, gently massaging it evenly for 2-3 minutes. Leave the mixture on the skin for an additional 10 minutes for relaxation, then rinse with cool water.
The recommended frequency for using coconut oil and baking soda for underarm whitening is 2-3 times per week. Over time, consistent application will yield noticeable improvements in your skin.
Turmeric Powder for Dark Spot Treatment
Turmeric powder is hailed as a ‘miracle’ ingredient in beauty and skincare due to its rich nutrient content, including vitamin E and curcumin. It offers various benefits such as treating acne, combating bacteria, fading dark spots and pigmentation, as well as preventing inflammation and signs of aging.

Turmeric powder effectively treats dark spots with baking soda
When combined with baking soda, turmeric powder becomes an effective treatment for darkening, promoting skin whitening under the arms and achieving an even-toned and more youthful appearance.
Ingredients:
- 1 tablespoon of baking soda
- 1 tablespoon of turmeric powder
- ½ tablespoon of lemon juice
Combine these three ingredients in a clean bowl, mixing thoroughly to form a smooth and homogeneous compound.
Next, use warm water to cleanse the skin under your arms, aiding in the opening of pores and the removal of oil and dirt.
Apply the baking soda and turmeric powder mixture to whiten the underarm area, massaging it evenly around the darkened skin for 2 minutes.
Leave the mixture on for 10 minutes before rinsing off with cool or cold water to help tighten pores.
For optimal skin whitening results, it is recommended to apply this baking soda and turmeric mixture three times a week consistently.
Baking Soda and Cornstarch for Skin Whitening
Cornstarch, a flour derived from corn (or maize), is rich in nutrients such as vitamin B1, vitamin B2, vitamin B3, vitamin B6, and vitamin E. With excellent antioxidant properties, cornstarch promotes collagen production, contributing to skin whitening when combined with baking soda.

Cornstarch, baking soda create a compound to treat dark spots
When paired together, baking soda and cornstarch work to inhibit melanin production and diminish dark spots under the arms, resulting in a pinkish-white and smooth appearance.
Ingredients:
- 1 vitamin E capsule
- 1 tablespoon of baking soda
- 1 tablespoon of cornstarch
Cut open the vitamin E capsule and place its contents in a clean bowl. Add the cornstarch and baking soda, then mix well until a smooth paste is formed.
Apply the paste evenly to the darkened underarm area, ensuring the skin is thoroughly cleaned and dried before application.
Leave the mixture on the skin for approximately 10-15 minutes, then rinse with cool water to cleanse and refresh the skin.
For visible results in fading dark spots and whitening underarms, follow this cornstarch and baking soda method 2-3 times a week.

Apply and keep on the skin to remove dark spots effectively
Rosewater and Baking Soda for Dark Spot Treatment
Rosewater, a widely favored skincare product, is commonly incorporated into routines by many women to balance and maintain their skin’s pH levels. Its moisturizing properties contribute to smoother skin, nourishing it from within and resulting in a brighter complexion. When combined with baking soda, this mixture not only helps eliminate dark spots but also leaves the skin smoother and naturally pink.
To prepare, blend one tablespoon of pure rosewater with one tablespoon of baking soda. Begin by using a damp cloth or exfoliating product to remove excess oil and bacteria from the skin.
Apply the mixture to the area of the armpit with dark spots, massaging it in circular motions around the armpit for 1-2 minutes. Leave the mixture on the skin for an additional 10 minutes before rinsing with cool, clean water to cleanse the skin.

Rose water helps smooth skin
Regular application of the rosewater and baking soda mixture for underarm whitening, three times a week, can rapidly promote white and smooth skin.
Important Considerations When Using Baking Soda for Underarm Whitening:

Need to apply more moisturizer on the armpit area after dark treatment
- Choose High-Quality Baking Soda: Select a reputable and high-quality pure baking soda to ensure the safety and effectiveness of the whitening process. Avoid low-quality products that may harm the skin.
- Avoid Application on Open Wounds or New Scars: Refrain from using baking soda on open wounds or newly formed scars, as it can potentially cause further damage and inflammation to the skin.
- Perform a Patch Test: Before using the baking soda mixture to whiten underarms, conduct a patch test, as some individuals may experience allergic reactions. This step helps ensure compatibility with the skin.
- Apply Moisturizing Cream After Use: Following the application of the baking soda mixture, it is recommended to apply a moisturizing cream to promote smoother skin.
- Avoid Immediate Application After Hair Removal: It is not advisable to apply the mixture immediately after hair removal methods such as shaving, plucking, or waxing, as the skin may be sensitive.
- Persistence and Consistent Application: Achieving results with baking soda for underarm whitening requires persistence and consistent application over an extended period. While it is a natural method, time and dedication are essential for noticeable improvements.
- Genetic or Congenital Conditions: Baking soda may not be effective for dark underarms caused by genetic factors or congenital conditions. In such cases, it is advisable to explore stronger treatment methods available at reputable spas or clinics.
The information provided aims to guide you in selecting and effectively applying the most suitable method for using baking soda to whiten underarms and treat dark underarms at home.

Johnny Jacks was born in 1985 in Texas, USA. He is the founder of Good Health Plan and is passionate about helping people improve their health and physical well-being. With over a decade of experience working in the healthcare industry, he currently works at Goodheathplan.com – a blog that shares knowledge on beauty and health.