Based on the provided search results, there is no single, widely recognized product labeled specifically as “Brightening Serum For Odd And Even Skin Type 120 ml.”
However, the search results highlight several popular brightening serums designed for all skin types (which often includes oily, dry, and combination, sometimes referred to as “odd and even” or “uneven” skin tones) aimed at reducing hyperpigmentation and brightening dull skin. 
Here are the most relevant brightening serums identified in the search results that match your description of “all skin types” or “uneven skin” targeting:

Top Recommended Brightening Serums
SKINQ Brightening Serum (Kojic, Lactic & Malic Acid): A dermatologist-formulated serum for all skin types, designed for dull, uneven, and tanned skin. It reduces pigmentation and increases skin radiance by a clinically measured +35.3%.
L’Oréal Paris Glycolic Bright Serum (1% Glycolic Acid): Designed for all skin types to reduce dark spots and even out skin tone. It is clinically proven to remove five years of dark spots in two weeks.
Deconstruct Brightening Serum (10% Niacinamide + 0.3% Alpha Arbutin): A lightweight serum suitable for all skin types, particularly effective at fading dark spots and treating pigmentation.
Cetaphil Healthy Radiance Brightening Serum: Formulated for all skin types, including sensitive skin, to reduce dark spots and improve radiance using 2% Niacinamide and Vitamin C.
Fixderma Skarfix Plus Serum: A serum aimed at reducing dullness and pigmentation using Kojic Acid, Alpha Arbutin, and Vitamin C. 

Key Benefits of These Serums
Even Skin Tone: Fades dark spots, sun spots, and post-acne marks.
Increased Radiance: Boosts the natural glow, tackling dullness.
Skin Texture Improvement: Exfoliates gently to reveal smoother skin.
Deep Hydration: Often includes ingredients like Hyaluronic Acid or Vitamin B5 to hydrate without clogging pores. 

Typical Usage
Application: 2-3 drops applied to clean skin, usually once or twice daily, followed by a moisturizer and sunscreen.
Timeframe: Visible results usually appear within 4–6 weeks of consistent use.