Can i use this after the aha serum?

I would add 2 drops and mix it with your serum.

any negative affects re ph balance?

I haven't had any negative effects. I just ordered my 4th bottle. My skin does so well with this product. Everything else makes me break out. This heals my acne and helps my skin look younger.

Should this product be put on by hand or with a cotton swab?

I put it on my hand, but it’s whatever you prefer.

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Niacinamide Serum 10% With Hyaluronic Acid-Tightens Pores, Reduces Wrinkles, Boosts Collagen & Repairs Skin, Organic, Vitamin B3 1Fl-Oz

Product ID: 254728661

Details

Product benefits
Moisturizing
Scent
Fresh
Skin type
All Skin Types
Special ingredients
niacinamide
Use for
Skin

⚡Boosts collagen & repairs skin

🌿Organic Hyaluronic Acid for deep hydration

💧10% Niacinamide for pore tightening

10302CFA

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✨ Glow Up Your Routine with Science-Backed Skincare!

HYDRATION HERO - Organic Hyaluronic Acid delivers intense moisture without heaviness—ideal for oily & combo skin.
ALL DAY SKIN BALANCE - Balances oil-water levels while fading dark spots for a clear, even complexion.
PORE PERFECTING POWER - 10% Niacinamide visibly tightens pores and smooths texture for that flawless glow.
YOUTHFUL RADIANCE BOOST - Stimulates collagen production to reduce wrinkles and restore skin’s youthful bounce.
LIGHTWEIGHT FAST ABSORBING - Non-sticky serum texture that layers seamlessly under makeup and sunscreen.

Cos De Baha Niacinamide Serum 10% with Hyaluronic Acid is a lightweight, organic serum designed to tighten pores, reduce wrinkles, boost collagen, and repair skin. Perfect for oily and combination skin types, it absorbs quickly without stickiness and supports balanced, radiant skin with daily use.

Specifications

ASIN	B07H3ZQ8R4
ASIN	B07H3ZQ8R4
Active Ingredients	hyaluronic_acid, niacinamide
Best Sellers Rank	#23,276 in Beauty ( See Top 100 in Beauty ) #48 in Facial Oils
Brand Name	Cos De BAHA
Customer Reviews	4.2 4.2 out of 5 stars (3,766)
Customer reviews	4.2 4.2 out of 5 stars (3,766)
Date First Available	2 November 2018
Department	Adults
Global Trade Identification Number	08809240317853
Is Discontinued By Manufacturer	No
Item Form	Drop
Item Volume	60 Milliliters
Item Weight	2 Ounces
Item model number	N30ml
Manufacturer	Cos De BAHA
Manufacturer	Cos De BAHA
Manufacturer Part Number	N30ml
Material Features	Absorbs quickly and leaves a non-sticky finish that works well under makeup and sunscreen., Clear, lightweight serum texture absorbs quickly, ideal for oily and combination skin needing hydration without heaviness.
Material Type Free	soap free
Model Number	N30ml
Number of Items	1
Product Benefits	Moisturizing, Skin Balance, Balanced Skin Tone, Pore Care, Oil-Water Balance
Product Dimensions	3.5 x 3.5 x 9.8 cm; 56.7 g
Recommended Uses For Product	Acne,Provides Vitamins,Uv Protection,Wrinkles
Scent Name	Fresh
Skin Tone	Fair
Skin Type	All Skin Types, especially Oily and Combination Skin, Normal
Special Ingredients	hyaluronicacid, niacinamide, vitaminc
Target Use Body Part	Skin
UPC	889810292115
Unit Count	3.0 Ounce

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