--- product_id: 534499185 title: "Humboldts Secret pH Up for Plants, Potassium Hydroxide, Liquid, 32 Ounce" brand: "humboldts secret" price: "222.18 DT" currency: TND in_stock: true reviews_count: 8 category: "Humboldts Secret" url: https://www.desertcart.tn/products/534499185-humboldts-secret-ph-up-for-plants-potassium-hydroxide-liquid-32 store_origin: TN region: Tunisia --- # Supports nutrient absorption & strong root growth Compatible with soil, coco, hydroponics & DWC Highly concentrated formula for precise pH control Humboldts Secret pH Up for Plants, Potassium Hydroxide, Liquid, 32 Ounce **Brand:** humboldts secret **Price:** 222.18 DT **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your garden game—because your plants deserve precision and power! ## Quick Answers - **What is this?** Humboldts Secret pH Up for Plants, Potassium Hydroxide, Liquid, 32 Ounce by humboldts secret - **How much does it cost?** 222.18 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/534499185-humboldts-secret-ph-up-for-plants-potassium-hydroxide-liquid-32) ## Best For - humboldts secret enthusiasts ## Why This Product - Trusted humboldts secret brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision pH Control:** Fine-tune your plant’s environment with a potent, concentrated potassium hydroxide formula for consistent growth. - • **Optimized Nutrient Uptake:** Boost nutrient absorption and root health to unlock your plants’ full potential at every growth stage. - • **Professional-Grade Purity:** Dye-free, additive-free, and expertly formulated for consistent, trustworthy performance in any plant environment. - • **Stable Hydroponic Support:** Maintain ideal pH levels (5.5-6.5) with reliable, steady adjustments that prevent nutrient lockout and promote vigorous development. - • **Universal Growing Compatibility:** Seamlessly supports all growing methods—soil, coco, hydroponics, aquaponics, and DWC—so your garden thrives no matter the setup. ## Overview Humboldts Secret pH Up is a concentrated potassium hydroxide liquid designed to precisely raise pH levels across all growing mediums including soil, coco, hydroponics, and DWC. Its professional-grade, additive-free formula enhances nutrient absorption and root development while maintaining stable pH balance (5.5-6.5) for healthier, more predictable plant growth throughout all stages. ## Description desertcart.com : Humboldts Secret pH Up for Plants, Potassium Hydroxide, Liquid, 32 Ounce | Concentrated, Supports Nutrient Absorption & Strong Root Growth, pH Control for Soil, Coco, Hydroponics & DWC, Easy to Apply : Patio, Lawn & Garden Review: Decent price very strong, way better than most others pH solutions - Decent price quality product from Humboldt very easy to use very powerful and effective just like it's partner pH down a few drops goes a long way may be a little pricey compared to other brands but you will use a lot less than other brands Review: Works great - Good stuff ## Features - Packaging Update: You may receive previous or updated packaging during our transition. Same formula, same performance. Improves Nutrient Absorption - Our Humboldts Secret pH Up allows gardeners to raise nutrient levels with accuracy so users of pH Up can reach the ideal range plants need for steady development. It promotes healthier roots, better nutrient movement, and consistent growth across all stages without disrupting the growing medium. - Supports All Growing Methods: This solution works across soil, coco, hydroponics, aquaponics, and DWC systems, helping maintain balanced conditions using pH Up for plants. It supports vegetables, flowers, trees, shrubs, and lawns by ensuring they receive nutrients efficiently for steady and predictable growth. - Reliable Stability for Hydroponic Systems: Its clean, highly concentrated formula allows controlled adjustments when pH Up hydroponics support is needed. Adding a small amount at a time helps maintain steady levels, supporting healthy development throughout the entire cycle and reducing risks linked to inconsistent nutrient availability. - Maintains Balanced Environment: Made with commercial grade potassium hydroxide, this solution delivers dependable correction for hydroponic pH balance needs. It helps maintain the proven ideal range of 5.5 to 6.5 so plants can thrive from early growth through flowering without affecting the integrity of the nutrient solution. - Expert Made Quality You Can Trust: Formulated by experienced professionals, this solution uses high quality ingredients to support precise adjustments for users managing pH controller hydroponics setups. Its dye free, additive free composition provides consistent performance across all compatible plant environments and growing methods. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C5B8BG3K | | Best Sellers Rank | #103,926 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2,021 in Garden Fertilizers | | Brand | Humboldts Secret | | Brand Name | Humboldts Secret | | Coverage | Medium | | Customer Reviews | 4.0 out of 5 stars 110 Reviews | | Global Trade Identification Number | 00706199757410 | | Item Form | Liquid | | Item Highlight | Concentrated, Supports Nutrient Absorption & Strong Root Growth, pH Control for Soil, Coco, Hydroponics & DWC, Easy to Apply | | Item Weight | 2 pounds | | Manufacturer | Humboldts Secret | | Model Number | 706199757410 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | HSSPHUP | | Target Species | plants | | UPC | 706199757410 | | Unit Count | 32 Ounce | ## Product Details - **Brand:** Humboldts Secret - **Global Trade Identification Number:** 00706199757410 - **Item Form:** Liquid - **Item Weight:** 32 Ounces - **Manufacturer:** Humboldts Secret ## Images ![Humboldts Secret pH Up for Plants, Potassium Hydroxide, Liquid, 32 Ounce - Image 1](https://m.media-amazon.com/images/I/713nz7a6ruL.jpg) ![Humboldts Secret pH Up for Plants, Potassium Hydroxide, Liquid, 32 Ounce - Image 2](https://m.media-amazon.com/images/I/71ALTofOk9L.jpg) ![Humboldts Secret pH Up for Plants, Potassium Hydroxide, Liquid, 32 Ounce - Image 3](https://m.media-amazon.com/images/I/81OHyHhvDoL.jpg) ![Humboldts Secret pH Up for Plants, Potassium Hydroxide, Liquid, 32 Ounce - Image 4](https://m.media-amazon.com/images/I/81xS1skVNAL.jpg) ![Humboldts Secret pH Up for Plants, Potassium Hydroxide, Liquid, 32 Ounce - Image 5](https://m.media-amazon.com/images/I/91xHJQRyZAL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Decent price very strong, way better than most others pH solutions *by S***N on February 15, 2026* Decent price quality product from Humboldt very easy to use very powerful and effective just like it's partner pH down a few drops goes a long way may be a little pricey compared to other brands but you will use a lot less than other brands ### ⭐⭐⭐⭐⭐ Works great *by C***Z on March 12, 2026* Good stuff ### ⭐ Super diluted worthless labeled as pH down on the back side. *by J***F on October 30, 2024* Look at all the other one star reviews!!! There's a very good reason! This stuff is diluted trash. If not just straight up water! Absolute garbage DO NOT BUY! The people that are selling this need to pull on Epstein! The back label of this product is clearly for pH down and not PH up. So that's number one. Number two is that it only has a TDS of 1030. There is no way on Earth that pH up should have a TDS that low. It literally does nothing to the nutrient solution.. this is insane that this product was sold like this for those two reasons. Unbelievable! Apparently Humboldt's Secret is dilution, and ripping people off. This is some S I'd expect meth addicts to do! ## Frequently Bought Together - Humboldts Secret pH Up - Hydroponic pH Up - pH Up for Plants to Stabilize Nutrient - Plant pH Adjustment - Plant Nutrient pH Levels Optimizer (32 Ounce) - Humboldts Secret pH Down | Liquid pH Plant Balancer for Soil & Hydroponics Growing System - Humboldts Secret Set of A & B Liquid Hydroponics Fertilizer - World's Best Nutrient System – Hydroponic Nutrients for Outdoor, Indoor Plants – Supports Vegetative and Flowering Stages of Plants --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/534499185-humboldts-secret-ph-up-for-plants-potassium-hydroxide-liquid-32](https://www.desertcart.tn/products/534499185-humboldts-secret-ph-up-for-plants-potassium-hydroxide-liquid-32) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-05*