Booster B Brightening & Purifying Ampoule 5ml x 5 | Tranexamic Acid · Five Patented Whitening Peptides · For Device Use Only | Made in Hong Kong

Dull skin, stubborn dark spots, and no significant change despite using bottle after bottle of brightening serum? True brightening requires inhibiting melanin at its root, not just surface coverage.

Booster B Aqua Luminous Skin Brightening Ampoule contains five highly concentrated, cutting-edge whitening active ingredients. With Tranexamic Acid at its core, combined with Glycolic Acid, Nonapeptide-1, Palmitoyl Tripeptide-8, and Acetyl Tetrapeptide-15, it simultaneously brightens skin tone from three dimensions: inhibiting melanin production, accelerating pigment metabolism, and reducing post-inflammatory hyperpigmentation. When used with an导入 machine, it breaks through penetration limitations, allowing high concentrations of whitening ingredients to deeply penetrate the skin and achieve maximum efficacy.

🇭🇰 Developed by Hong Kong formulators and manufactured locally in Hong Kong
Developed and Made in Hong Kong.

5ml × 5 vials｜Each vial can be used 2–3 times

✦ What problems does this ampoule solve for you?

• Dull and uneven skin tone, lacking radiance

• Sun spots and freckles deepen after sun exposure and are difficult to improve

• Post-inflammatory hyperpigmentation (PIH) remaining after medical aesthetic treatments or sensitivity

• Unsatisfactory results with general whitening essences, hoping to upgrade to a higher concentration targeted formula

• Already own a home-use導入 machine and want to use it with a highly effective whitening ampoule

✦ Why is Booster B's brightening effect superior to general whitening essences?

① Tranexamic Acid — Dermatologist-approved premium whitening ingredient
Tranexamic Acid (TXA) was originally a medical hemostatic agent, but its powerful whitening efficacy was discovered in skincare applications, making it one of the most commonly recommended whitening active ingredients by dermatologists. Its whitening mechanism involves blocking the pro-melanin-producing signals sent by Keratinocytes to Melanocytes, inhibiting melanin production at the upstream source, and simultaneously reducing UV-induced hyperpigmentation. It shows significant improvement in sun spots, post-inflammatory hyperpigmentation (PIH), and overall uneven skin tone, while being much gentler than traditional Kojic Acid.

② Glycolic Acid — Accelerates old pigment metabolism for faster brightening results
Glycolic Acid is the smallest molecular weight AHA (Alpha Hydroxy Acid), effectively promoting stratum corneum renewal, accelerating the metabolism and shedding of dead skin cells containing old pigment, and also speeding up the epidermal cell renewal cycle, allowing the skin to quickly appear renewed and radiant. When used with Tranexamic Acid, it inhibits new melanin production on one hand and accelerates existing pigment metabolism on the other, creating a dual-action brightening mechanism for faster results.

③ Nonapeptide-1 — Directly inhibits tyrosinase activity
Nonapeptide-1 is a competitive antagonist of Alpha-MSH (melanocyte-stimulating hormone), occupying the Melanocortin-1 Receptor site and directly blocking the signal transduction that triggers melanin production, fundamentally inhibiting the activation of Tyrosinase. It is the most direct melanin-inhibiting ingredient in the formula.

④ Palmitoyl Tripeptide-8 — Reduces inflammation-induced hyperpigmentation
Skin inflammation is a significant cause of hyperpigmentation. Palmitoyl Tripeptide-8 effectively inhibits skin inflammatory responses, reducing excessive melanin production triggered by inflammation, especially targeting post-inflammatory hyperpigmentation (PIH) left after sensitivity, medical aesthetic treatments, or sunburn, making the brightening effect more comprehensive and lasting.

⑤ Acetyl Tetrapeptide-15 — Enhances skin tolerance for safer use of whitening ingredients
Acetyl Tetrapeptide-15 reduces the skin's excessive reaction to irritation, enhances skin tolerance to whitening active ingredients, and reduces the potential irritation caused by acidic ingredients like Glycolic Acid, making the entire formula highly effective yet gentle and safe, even for sensitive skin.

✦ Benefits

• Inhibits melanin production: Tranexamic Acid + Nonapeptide-1 block melanin signals through multiple mechanisms at the source

• Accelerates pigment metabolism: Glycolic Acid promotes keratin renewal and accelerates the metabolism and shedding of pigment

• Reduces post-inflammatory hyperpigmentation: Palmitoyl Tripeptide-8 inhibits inflammation-induced pigment production

• Overall skin tone brightening: Multiple mechanisms work together to even out skin tone and restore radiance

• Increases skin elasticity: Peptide ingredients simultaneously promote collagen, improving wrinkles and skin texture

✦ Texture

A clear, lightweight, watery essence with a fluid texture that spreads easily. It is unscented and colorless, quickly penetrating and absorbing without leaving a white cast or stickiness. When used with an导入 machine, it glides smoothly on the skin, suitable for all skin types. It is recommended to use after hydrating or repairing ampoules (such as Booster H).

✦ Active Ingredients

Tranexamic Acid
A medical-grade whitening ingredient that inhibits melanin production upstream by blocking pro-melanin signals from keratinocytes to melanocytes. It significantly improves sun spots, PIH, and uneven skin tone, with high gentleness, making it one of the most commonly used whitening active ingredients in dermatology.

Glycolic Acid
The smallest molecular weight AHA, effectively promotes stratum corneum renewal and accelerates the metabolism of pigmented dead skin cells, shortening the epidermal cell renewal cycle. When used with Tranexamic Acid, it forms a dual "inhibition + metabolism" brightening mechanism.

Nonapeptide-1
A competitive antagonist of Alpha-MSH, it directly occupies the Melanocortin-1 Receptor site, blocking the signal transduction that triggers Tyrosinase activation. This is the most direct melanin inhibition mechanism at the receptor level.

Palmitoyl Tripeptide-8
An anti-inflammatory signaling peptide that inhibits skin inflammatory responses and inflammation-induced excessive pigment production, particularly improving PIH. It also has soothing effects, enhancing the overall gentleness of the formula.

Acetyl Tetrapeptide-15
A skin tolerance regulating peptide that reduces the skin's excessive reaction to active ingredients, minimizing potential irritation from acidic ingredients in the formula, making the highly effective whitening formula suitable for sensitive skin.

✦ Ingredients List

Aqua, Glycerin, Tranexamic Acid, Benzyl Alcohol, Sodium Chloride, Disodium EDTA, Polyacrylate Crosspolymer-6, Sodium Carbomer, Polysorbate 20, Ethylhexylglycerin, Glycolic Acid, Coco Glucoside, Nonapeptide-1, Acetyl Tetrapeptide-15, Palmitoyl Tripeptide-8

✦ Suitable For

• Individuals with dull and uneven skin tone, seeking overall skin brightening

• Individuals concerned with sun spots, freckles, and hyperpigmentation

• Individuals with post-inflammatory hyperpigmentation (PIH) remaining after medical aesthetic treatments or sensitivity

• Individuals who have used EAA20 Brightening Antioxidant Serum and wish to further enhance their whitening efficacy

• Individuals who already own a home-use導入 machine and wish to use it with a highly effective whitening ampoule

✦ Free From Statement

✅ Alcohol-free
✅ Fragrance-free
✅ Paraben-free
✅ MIT (Methylisothiazolinone)-free

✦ How to Open the Vial

1. Follow the arrow indicator on the cap to confirm the opening position

2. Lift the cap and peel off the aluminum foil seal

3. Remove the gray stopper

4. Place the included clear ampoule dropper on top (securely)

✦ How to Use

With a home beauty device (recommended):

1. After cleansing, gently press the dropper to dispense an appropriate amount of essence and apply it to the skin

2. Use a beauty device to gently massage until the skincare product is fully absorbed

3. Finish with a face cream or lotion

4. Dosage: 1/3 – 1/2 vial per use

Direct use without a beauty device:

1. After cleansing, apply an appropriate amount of essence to the face

2. Gently pat until absorbed, then proceed with subsequent skincare steps

3. Each vial can be used for approximately one week

💡 Usage tip: It is recommended to use Booster H first to strengthen the skin barrier with hydration, then use Booster B, allowing the hydrated skin to better absorb the brightening ingredients evenly.

⚠️ Contains Glycolic Acid, so sunscreen (SPF30 or higher) must be applied after use to avoid increased risk of hyperpigmentation if exposed directly to sunlight during the day. For hygienic reasons, it is recommended to finish within one week after opening. Before use, it is advisable to perform a sensitivity test behind the ear or on the inner forearm. Avoid the eye area and broken skin when using.

✦ Formulator Q&A

Q: How much should I use with an导入 machine each time?

A: It is recommended to adjust according to your face shape and the导入 machine's mode. Generally, a 10-minute导入 program requires about half a vial. After use, you can replace the stopper and continue using it later. It is recommended to finish within one week after opening.

Q: How many times a week should I use it?

A: For daily brightening maintenance, it is recommended to use it with an導入 machine 1–2 times a week. If you need to target specific dark spots or hyperpigmentation for intensive improvement, you can appropriately increase the frequency of use, but please ensure adequate sun protection after each use to prevent further sun irritation to newly exfoliated skin.

Q: Can I use Booster B if I don't have a home beauty device?

A: Yes, it is also effective when used directly as a high-efficacy brightening essence. The ampoule's highly concentrated active formula already far surpasses general brightening essences, and using it with an導入 machine further enhances absorption efficiency, allowing brightening ingredients to penetrate deeper into the skin's pigment layer.

Q: Can I mix multiple ampoules?

A: It is recommended to use them separately rather than mixing directly. First, use a hydrating ampoule (such as Booster H) to strengthen the skin barrier, then use Booster B to ensure that each ingredient is fully absorbed by the skin for optimal brightening results.

Q: What should I pay attention to when using formulas containing Glycolic Acid?

A: Glycolic Acid is an AHA (Alpha Hydroxy Acid), and skin photosensitivity will increase after use. Therefore, sunscreen (recommended SPF30 or higher, such as ECT1) must be applied after use. It is advisable to avoid using it in large quantities before outdoor activities during the day. It is best suited for intensive brightening care with an導入 machine at night, ensuring adequate sun protection the following morning.

✦ Why choose Booster B?

The biggest problem with whitening skincare is "using the same mechanism throughout"—only using Tranexamic Acid, or only acidic exfoliation, or only relying on antioxidants, often yielding limited results. Booster B's design philosophy is multi-mechanism synergy: Tranexamic Acid cuts off upstream signals, Nonapeptide-1 occupies receptors to block activation, Glycolic Acid accelerates old pigment metabolism, Palmitoyl Tripeptide-8 inhibits inflammatory pigment, and Acetyl Tetrapeptide-15 ensures the entire formula is gentle and sustainable for use.

Five ingredients, five points of action, simultaneously targeting different stages of melanin production – this is true "comprehensive brightening."

Radiant skin isn't about covering up, but about treating the root cause.

Booster B is developed by a team of Hong Kong formulators and proudly manufactured locally in Hong Kong. Each ampoule embodies a dedication to skincare ingredients and a promise to your skin.
🇭🇰 Proudly Developed & Made in Hong Kong.