How Can I Stop by 10 1/2 Months Old from Hitting and Pulling My Hair

Say STOP in a loud voice. Then when they stop you go back to snuggling and playing. When they do it again you say STOP again. You can also put them down and say NO pulling hair. Then when they are calm and you are ready to do things with them again you pick them up and interact. When they do it again you say STOP. They cry, you say NO pulling hair. Then wait. Over and over.

Say STOP, say NO pulling hair. Put them down and go find something to do. When they want to play say NO pulling hair. You have to teach them what this means and that good attention comes when they aren't pulling hair.

Say what you DO want. Say "gentle" and be soft on his check and act how you want to be treated. It might sound obvious, but it is not. Often people make the mistake and say what they do not want "No hitting" which is not super helpful to a 10 month old.

It is a skill to say what TO DO. For example when a child stand on a chair and the parent says "Don't stand on the chair" it is not as helpful to a baby as hearing "Please sit in the chair."

I recall this phase and it is normal.

Put your hair up.
Braids or a bun will work.
I like using African Butterfly Hair Clips - I have my hair up and out of the way in minutes and it stays neat and looking great all day.
Baby is just exploring.
If you had glasses or braces on your teeth your baby would be reaching out with little hands for those too.
You might want to give him/her something to hold (rattle, small toy, teething ring, etc) that you can tether to stroller or car seat (so it can't be dropped or lost).
EVERYTHING will go into the mouth for a few years yet.
Might as well get use to it!

Not much info here - your question is exactly the same as your title, unfortunately, so we don't know what you've already tried.

At this age, though, kids do respond to losing what they want - which is you. And at this age, as with all ages, they respond to absolute consistency. So every time he/she hits, put him down in a boring place (car seat, play pen, crib) and walk away. Say very little - "No hitting" is enough. Say it once, firmly, secure him/her for safety (such as car seat) and walk away - either into the next room, or if in the car, far enough that you can see him/her for safety but still deprive him/her of your company.

Same thing with the hair pulling - I do agree that you should put your hair out of reach as much as possible, and you can try to give him/her something else to hold, but mostly responding with putting your child down instantly and consistently will help get the message across. It will not work the first time, or the second - but kids who see that they don't get what they want when they do hurtful or unsafe or unpleasant things usually figure out that their own lives are better if they stop. It's not about them feeling empathy for the person they've hurt - they don't get that at 10 months, of course, but they don't get it at 2 or 4 or 6 either. So it has to be harder for them when they hit than it is when they don't.

I can't remember how old mine were exactly, bur probably that age when they started reaching up if I was nursing them, and grabbing my glasses or smacking me with wayward hands ..

I remember saying "no" gently but firmly once after being swacked and one of mine looking completely dazed then bawling. But generally speaking, I would just put my hair up and move my face away and gently say "ta ta" (my kids didn't cry to ta-ta) but distraction (toy, etc.) is probably easiest at that age.

Ten and half months? You have some great options. Keeping your hair up is one. I wear glasses and when Kiddo would reach for them, I'd say "no" and either hand him something (if there was an appropriate object to hold within reach) or put him down in a safe spot, off my body. Did the same thing when he bit me while nursing. "Stop." and set him down.

With little ones this age, it's hard to 'discipline' per se. I would avoid using a loud voice, as some little ones see this as an attention reaction (you are reacting, they think that's interesting, they get attention... often the loud voice only startles babies, it doesn't teach). Get that? Even if it hurts, no big reactions. As for the hitting, I would encourage you to understand that infants do not hit with the intention of hurting. Be sure not to hit back. (The same goes with biting, there is no reason to 'bite back'. We have to be better than our infants and toddlers juvenile behavior.)

The key tenants for wee ones is to change the environment in order to change the behavior. So, if he's consistently doing something you don't like, make the effort to modify what you can (hair up, for example) and then have a safe place available to place them. If I was carrying my son in the pack and he had been hitting or grabbing at me, I'd move him to the floor or the ground if that was a safe choice, or a pack-n-play or use a stroller and strap him in. These are what I call 'containment options'. In this way, you stop the behavior before YOU lose your cool.

When we got close to age 1, I found that a firm "No" and a 1 min timeout were effective.

I recommend a gentle but firm 'no' and a simple toy to hold. I really like the teething necklaces or bracelet that baby can fiddle with. These are available at Target on the end cap in the baby section but are also available online handmade and commercially if that is simpler.