Optic Foliar REV – 250 ml

Optic Foliar REV is a foliar nutrient supplement (NPK 0.5-0.6-0.021) designed to support plants during periods of accelerated growth and active flowering. REV works alongside Optic Foliar WATTS and TRANSPORT to supply micronutrients, organic vitamins, amino acids, carbohydrate sugars, and vitamin B1 — the building blocks plants need when growth rates are elevated and root-zone feeding alone may not keep pace.

Optic Foliar REV Specifications

Technical specifications for Optic Foliar REV 250 ml. Values are sourced from manufacturer product data and the canonical supplier listing.

Specification	Value
Brand	Optic Foliar
Product Name	REV
Size	250 ml (8.5 fl oz)
NPK Ratio	0.5 – 0.6 – 0.021
Application Method	Foliar spray
Key Inputs	Micronutrients, organic vitamins, amino acids, carbohydrate sugars, vitamin B1
Recommended Use Stage	Growth and flowering
Weight	0.50 lb (approx.)
Supplier SKU	FOL-REV-250ML

Why Choose Optic Foliar REV

Optic Foliar REV is designed to address a specific problem: when WATTS accelerates vegetative and flowering growth to a markedly higher rate, the plant’s demand for micronutrients and supporting compounds outpaces what root-zone feeding typically delivers. REV fills that gap through direct foliar absorption.

• Pairs with the Optic Foliar system: REV is engineered to work as part of the WATTS + TRANSPORT + REV program. WATTS increases plant metabolism and growth rate; REV provides the nutrition to sustain that elevated rate without letting the plant run short.
• Broad micronutrient profile via the leaf surface: REV delivers micronutrients, organic vitamins, amino acids, carbohydrate sugars, and vitamin B1 directly through foliar uptake, a route that bypasses root-zone limitations like locked-up soil nutrients or pH drift in a reservoir.
• Supports flower quality, taste, and flavor: The carbohydrate sugars and amino acids in REV serve as building blocks for terpene and secondary metabolite development during flowering, which can influence final product quality.
• Promotes greener, more lush growth: Growers using REV alongside WATTS report visibly greener foliage and more vigorous canopy development compared to root-zone feeding alone during the same period.
• Compact 250 ml size for smaller operations: The 250 ml bottle is suited to hobby growers or those trialing the Optic Foliar system before committing to larger volumes. The concentrate dilutes to cover multiple application cycles.

Best Uses for Optic Foliar REV

REV is a targeted supplement, not a standalone base nutrient. It works best when you understand where it fits in a feeding program.

• During WATTS applications: If you are already using Optic Foliar WATTS, REV is the companion product that covers the increased nutritional demand triggered by WATTS-driven growth acceleration. Use them together for the full intended effect.
• Mid-to-late vegetative and early flowering stages: REV provides vitamin B1, amino acids, and carbohydrates that support the transition from rapid vegetative growth into flower set. Growers applying REV during this window can help the plant channel its resources into bud development.
• When root-zone nutrient uptake is restricted: In systems where pH fluctuations, root zone congestion, or media nutrient lockout is reducing uptake efficiency, foliar feeding with REV gives plants a direct alternative route to access key micronutrients.
• Supplementing a standard nutrient program: REV is not a replacement for your base NPK program. It layers on top of an existing regimen — whether you are growing in soil, coco, or hydro — to fill micronutrient and organic compound gaps that base nutrients do not address at the same resolution.
• Improving final product characteristics: The amino acids and carbohydrate sugars in REV are associated with supporting the biochemical pathways that influence taste and flavor in flowering crops. Growers focused on end-product quality often use REV through mid-flowering.

For growers exploring other nutrient additives in the same category, Advanced Nutrients Tarantula is a microbial root inoculant that addresses the root-zone side of the nutrient uptake equation, while Earth Juice Hi-Brix Molasses is another carbohydrate-based supplement used during flowering.

Optic Foliar REV vs Similar Foliar Supplements

Foliar feeding is a niche application method — most nutrient companies focus primarily on reservoir or soil drenches, so direct comparisons between dedicated foliar programs are worth understanding before choosing.

REV vs general-purpose foliar sprays: Many generic foliar sprays on the market are diluted versions of standard base nutrients, offering nitrogen, phosphorus, and potassium at the leaf surface. REV’s formulation is different in that it leads with a low NPK ratio (0.5-0.6-0.021) and emphasizes micronutrients, vitamins, amino acids, and carbohydrates rather than macro elements. This reflects its role as a companion supplement rather than a standalone nutrient source.

REV vs root-drench additives: Root-drench additives like microbial inoculants or enzyme supplements (for example, root-health additives in the nutrients category) work from the bottom up, improving root-zone conditions so plants can absorb more from the medium. REV works from the top down, delivering compounds directly through the leaf cuticle. The two approaches are complementary rather than competing, especially when used at different stages of the crop cycle.

REV within the Optic Foliar system: REV is designed specifically to be used after WATTS has increased the plant’s metabolic rate. Without WATTS in the program, REV still provides value as a standalone foliar supplement, but the full rationale for the product — meeting an elevated nutritional demand — applies most directly when used as intended within the three-product system (WATTS + TRANSPORT + REV).

Compatibility

Optic Foliar REV is compatible with a broad range of growing systems and media because it is applied as a foliar spray rather than added to a reservoir or drench solution.

• Growing media: Compatible with soil, coco coir, rockwool, and hydroponic systems. Because REV bypasses the root zone entirely, the media type does not affect its absorption or efficacy.
• Optic Foliar system products: REV is specifically designed to be used with Optic Foliar WATTS (the growth accelerator) and Optic Foliar TRANSPORT (which helps carry compounds through the leaf cuticle). The three products are intended to be used together as a complete foliar program.
• Other nutrient brands: REV can be used alongside base nutrients from other brands — Advanced Nutrients, General Hydroponics, Canna, House and Garden — since it is applied as a separate foliar spray and does not interact directly with reservoir chemistry.
• Lighting environments: Foliar sprays should not be applied under high-intensity lighting when leaves are warm and stomata may be partially closed. Best practice is to spray during lights-off or in the last hour before lights come on, when stomata are more open and the risk of leaf burn from water droplets under intense light is reduced.
• Growth stages: REV is documented for use during growth and flowering stages. Avoid applying foliar sprays within the final two to three weeks before harvest to allow residue to dissipate.

Dosing Guidelines

Specific dose rates for Optic Foliar REV are not published in the canonical supplier listing. The following guidance is based on general foliar supplement practices and the product’s positioning within the Optic Foliar system. Consult the manufacturer label or the Optic Foliar website for current recommended rates before first use.

• Measure carefully: REV is a concentrate. Use a calibrated syringe or measuring cup rather than estimating by eye. Small errors in dosing foliar sprays are amplified because foliar feeding is more direct than reservoir feeding.
• Mix with clean water: Start with pH-adjusted water (target 5.5–6.5 for foliar applications) before adding REV. If using TRANSPORT as a carrier, follow Optic Foliar’s recommended mixing order for the three-product system.
• Test on a small area first: Before applying to the full canopy, spray a single leaf or small branch and wait 24 hours to check for any sensitivity, particularly if using REV for the first time or at a new growth stage.
• Apply during the appropriate light window: Spray when stomata are most receptive — in the dark period or just before lights-on. Avoid spraying mid-day in a well-lit environment.
• Frequency: Foliar programs are typically applied one to two times per week during the target growth window. Do not exceed the manufacturer’s recommended frequency as leaf surface residue can accumulate.
• Stop before harvest: Cease all foliar applications at least two to three weeks before harvest to allow any residue to clear from the plant surface.

How to Apply Optic Foliar REV

1. Prepare your spray solution: Measure the recommended dose of REV per litre of clean, pH-adjusted water. If using Optic Foliar TRANSPORT, add it to the water first, then add REV, and mix thoroughly.
2. Choose the right timing: Apply during the dark period or within the last hour before lights come on. This is when stomata are most open and leaf temperatures are lower, reducing the risk of burn and improving uptake.
3. Load the sprayer: Use a clean hand or pump sprayer. Rinse the sprayer with clean water before loading REV solution, especially if you have previously used other products that could cross-contaminate the formulation.
4. Coat both sides of the leaves: Spray the underside of leaves as well as the upper surface. Stomata are concentrated on the underside of most plant leaves, making the abaxial surface more efficient for foliar absorption.
5. Allow to dry: Let the spray dry on the plant before resuming normal environmental conditions. Do not rinse the plant immediately after application.
6. Document your application: Note the date, dose, and plant response in your grow log. This helps you adjust frequency and rate over successive applications based on what you observe.
7. Clean the sprayer: Rinse the sprayer thoroughly with clean water after each use. Residual concentrate in the sprayer can degrade and cause problems in subsequent applications.

Sources & Further Reading