1. Mousse. You want to make sure every single strand is covered, Josh says. To do so, divide your hair into four quadrants and apply an egg-size amount to each quadrant. Finally, massage or brush it through, and style as usual.
2. Serum. If you have finer hair, to keep it from looking greasy, use no more than 1/2 a pump, or about the size of two grains of rice. For medium to thick hair, which can handle more, use the size of a quarter.
3. Dry shampoo. If you’re using it to soak up oil, it’s best to target the roots by parting your hair above your left ear with your pinky, lifting the hair up, and spraying one burst of formula for every 4 inches of hair directly on the part. Continue to do this in 1-inch increments across your entire head until you reach your right ear. Then, repeat these steps from the crown of your head to the nape of your neck.
If you’re looking to increase volume, flip your hair upside down, holding the nozzle down, until you’ve covered all of your strands. If your hair is on the drier side, focus on the roots only when you’re building body.
4. Salt spray. With wet hair, flip your hair upside down and lightly mist it over all your strands. Then, scrunch from ends to roots, allowing it to air dry. With dry hair (to create that sexy bedhead texture), mist a few pumps all over and attach a diffuser on your hair dryer to rough up the cuticle.
5. Hairspray. Use a windshield-wiper motion, spraying continuously until you’ve reached your desired hold. Whatever you do, don’t direct the spray in the same area for too long, or that spot will look overly shiny and feel crunchy.
6. Dry texture spray. This formula isn’t meant for your roots, so only use several bursts from the mid-length down to your ends. Flip your head upside down, ruffling through your hair with your fingers as you spray it, so you apply it evenly.
7. Wax/pomade. These formulas are perfect for shorter hair and curly textures. For shorter styles, a dime-size amount will do. To apply it, emulsify the wax or pomade in between your fingertips, and using quick motions, piece out your short hair to enhance its texture. For curlier textures, warm the product in your hands and twirl your curls around your fingers to apply the product.
8. Hair gel. Based on the thickness of your hair, section your wet strands into quadrants, then warm a nickel-size amount (for fine hair) between your hands, applying it to each quadrant; use a silver dollar-size for thick or coarse and curly hair. Then, style as usual.
9. Hair oil. This product is best applied to the ends of your hair when it’s wet so it can really penetrate the deep layers of your strands. You want to be sure to keep it away from your roots, since they’re the healthiest and most hydrated part of your hair. If you hair is especially dry, you can also apply it to the middle, but your ends are what will benefit from it the most. Use the equivalent of one grain of rice for fine hair and a nickel-size amount for thicker hair textures.
10. Blow-dry cream. This product is designed for women with thicker, coarser hair that struggles to stay smooth after a blowout. It’s also very thick, so to apply it without weighing down your hair, it’s best to section your hair into quadrants and never use more than anywhere from a blueberry- to a grape-size amount per quadrant, depending on the thickness.
11. Shine spray. This product is a one-pump wonder. Spritz it up into the air and let it fall on your hair to avoid applying too much directly onto your strands, and then brush it through to finish.
12. Thermal protection spray. Keep this product off your roots and focus it on the mid-length and ends — especially since your flat iron/curling rod never really gets that close your roots. That said, if you do have curlier hair and your spirals start right at your scalp, feel free to spritz a thermal protectant spray on that area to prevent heat damage. Regardless of where you’re directing it though, a few sprays on each section you’re curling or flat-ironing will do.
13. Hair mask. These products are designed to hydrate medium to thick hair that is over-processed or really parched, so if that describes your hair type, don’t be afraid to use a lot of this product. The size of a clementine should be perfect. If you have finer hair, use a little less from the mid-length down to your ends. Rinse and style as usual.
14. Shampoo. The good news is, you can’t use too much shampoo, so if you want the results of your shampoo to last longer, you’ll want to follow these guidelines: For fine hair, you’ll want to use a cherry tomato-size; the thicker and dirtier your hair is, you’ll have to bump it up a notch, using as much as a walnut-size amount. Massage the formula into your scalp for a minute or two, and rise.
15. Conditioner. Unlike shampoo, you can over-condition your roots, which can weigh down finer hair types. Since your roots are the healthiest part of your hair, you really don’t need to apply conditioner there anyway. But it is important to use from the mid-length to ends regardless of your hair thickness. That said, if your hair is on the finer side, never use more than a quarter-size amount; if your hair is dehydrated and coarse, squeeze out a golfball-size amount. Rinse, squeeze your hair dry (rubbing it with a towel causes friction, which can lead to split ends), then style as desired.